APPENDIX E.

APPLICATIONS for PATENTS made in 1921-1923 by PERSONS residing in the various parts of HIS MAJESTY'S DOMINIONS, and in FOREIGN STATES, and PATENTS granted on APPLICATIONS of 1921.

APPENDIX F.

PATENTS SEALED IN 1908-1921 AND KEPT IN FORCE BY PAYMENT OF RENEWAL FEES.

Proportion per cent. of

Patents sealed and in

Patents kept in Force by Payment of Renewal Fees to end of

7th Year. 8th Year. 9th Year.

10th Year.

11th Year.

12th Year.

13th Year. 14th Year. 15th Year.

16th Year.

471

55-8 5,551 35-8 4,198 27·1

3,209 20.7 2,531

1,712

10-71,554

16.3 2.201 14 2 1,962 12 6
474 53.8 6,010 37-6 4,304 26-93,410 21-3 2,888 18 0 2,616 16-3 2,257 13-7 2,057 12-5 1,985 12.1 1.623
468 54.4 5,987 37-2 4,197 26-13,525 21 9 3.119 19 4 2,744 16-5 2,452 14 8 2,413 14-6 1,971 11.9 1,540
450 55-0
5,543 35 2 4,422 28 0 3,839 24 3 3,255 20 1 2,904 17-9 2,896 17 9 2,397 14 8 1,819 11-21,501
524 56.3 6,506 39-5 5,318 32-34,442 26-2 3,952 23 3 3,833 22 6 3,185 18-8 2,412 14 2 1,867 11.0
467
34-6
6,585 40 1 5,625 84-2 4,997 30 44,916 29-9 4,027 24-5 2,933 18-1 2,450 14-9
259 49.2 6,386 52-3 5,203 42 65,008 41-0 4.228 34-6 3,101 25 4 2,357 19.3
163 50.8 5,403 58-5 4,865 52 6 4 247 46 0 2,997 32 4 2,257 24 4
190 52-2 5,818 60-05,062 52 23,654 37-7 2,662 27-4
236 53.9 6,374 61-3 4,482 43 13,214 30-9
239 54.2 6,377 53 9 4,280 38-2
290 51-5 7,431
588

430

50-6

46.4

Patents.

Number.

Proportion per cent, of

Patents.

Number.

Proportion per cent. of

Patents.

Number.

Proportion per cent. of Patents.

Number.

Proportion

per cent, of Patents.

Number.

Porportion

per cent. of Patents.

Number.

Proportion per cent. of Patents.

Number.

Proportion per cent. of Patents.

Number.

Proportion per cent. of Patents.

* No renewal fees are payable in respect of patents of addition.

APPENDIX G.

LIST OF PATENTS IN FORCE WHICH HAVE BEEN Prolonged bEYOND THE NORMAL PERIOD.