Patent US2204526A successfully refreshed from Google Patents.
Patent US3018210A successfully refreshed from Google Patents.
US3018210A
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Ballistic helmet and method of making same
Assignee: Gentex Corp
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Filing: 1955-05-09
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Granted: 1962-01-23
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Expires: 1975-05-09
Abstract
No abstract record available.
Inventors
- 👤 Leonard P Frieder
- 👤 Fryer Michael John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:50
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/06; A42B3/062; A42B3/063; B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/08; B29C70/28; B29C70/30; B29C70/34; B29C70/345; B29C70/40; B29C70/42; B29C70/46; B29C70/68; B29C70/78; B29D; B29D22/00; B29D99/00; B29D99/0064; B29D99/0075; F; F41; F41H; F41H1/00; F41H1/04; F41H1/08; B29C2791/00; B29C2791/001; B29K; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0809; B29K2313/00; B29L; B29L2031/00; B29L2031/48; B29L2031/4807; B29L2031/4814; B29L2031/4821; B29L2031/4828; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A METHOD OF MAKING A BALLISTIC HELMET INCLUDING THE STEPS OF PREFORMING AN OUTER SHELL TO THE SHAPE OF SAID HELMET FROM RESIN IMPREGNATED FIBROUS MATERIAL, PLACING A LAYER OF FLEXIBLE MULTI-LAYER PENETRATION RESISTANT FABRIC WITHIN SAID OUTER SHELL, PLACING A FILM OF MATERIAL IMPERVIOUS TO A RESINOUS IMPREGNATING MATERIAL OVER SAID
Claim 2
Independent Claim
52 words
A METHOD OF MAKING A BALLISTIC HELMET INCLUDING THE STEPS OF PREFORMING AN OUTER SHELL TO THE SHAPE OF SAID HELMET FROM RESIN IMPREGNATED FIBROUS MATERIAL, PLACING A LAYER OF FLEXIBLE MULTI-LAYER PENETRATION RESISTANT FABRIC WITHIN SAID OUTER SHELL, PLACING A FILM OF MATERIAL IMPERVIOUS TO A RESINOUS IMPREGNATING MATERIAL OVER SAID
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |