US3353187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective helmet
Assignee: Individual
•
Filing: 1965-11-19
•
Granted: 1967-11-21
•
Expires: 1985-11-19
Abstract
No abstract record available.
Inventors
- 👤 Abraham L Lastnik
- 👤 Meyer I Landsberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:17
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/06; F; F41; F41H; F41H1/00; F41H1/04; F41H1/08; F41H5/00; F41H5/02; F41H5/04; F41H5/0471; F41H5/0478
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A CRASH AND BALLISTIC PROTECTIVE HELMET COMPRISING A RIGID OUTER SHELL FORMED OF A PLURALITY OF PLIES OF A WOVEN NYLON FABRIC, SAID PLIES BONDED TOGETHER BY A RESIN WHERE SAID RESIN COMPRISES AT LEAST 35% BY WEIGHT BASED ON THE WEIGHT OF THE SHELL, AN INNER ENERGY ABSORBING LINER OF IRREVERSIBLY CRUSHABLE EXPANDED PLASTIC MATERIAL AND MEANS ATTACHING SAID INNER ENERGY ABSORBING LINER TO THE INNER SURFACE OF SAID RIGID OUTER SHELL.
Claim 2
Dependent Claim
73 words
A CRASH AND BALLISTIC PROTECTIVE HELMET COMPRISING A RIGID OUTER SHELL FORMED OF A PLURALITY OF PLIES OF A WOVEN NYLON FABRIC, SAID PLIES BONDED TOGETHER BY A RESIN WHERE SAID RESIN COMPRISES AT LEAST 35% BY WEIGHT BASED ON THE WEIGHT OF THE SHELL, AN INNER ENERGY ABSORBING LINER OF IRREVERSIBLY CRUSHABLE EXPANDED PLASTIC MATERIAL AND MEANS ATTACHING SAID INNER ENERGY ABSORBING LINER TO THE INNER SURFACE OF SAID RIGID OUTER SHELL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |