US3456263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rigid shell helmet with ear cup
Assignee: Gentex Corp
•
Filing: 1967-05-09
•
Granted: 1969-07-22
•
Expires: 1987-05-09
Abstract
No abstract record available.
Inventors
- 👤 Jackson A Aileo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:33
CPC Classifications
A; A61; A61F; A61F11/00; A61F11/06; A61F11/14; A42; A42B; A42B3/00; A42B3/04; A42B3/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US631880A
Cited
GB397985A
Cited
US2805419A
Cited
US2858544A
Cited
US3190973A
Cited
US3091771A
Cited
US3148376A
Cited
US3178723A
Cited
US3241154A
Cited
US3344433A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |