US3501772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sporting safety helmet
Assignee: TEXACE Corp A CORP OF TEX
•
Filing: 1968-05-08
•
Granted: 1970-03-24
•
Expires: 1988-05-08
Abstract
No abstract record available.
Inventors
- 👤 Marlin H Wyckoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:37
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/10; A42B3/12; A42B3/125; A42B3/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US682455A
Cited
US2140716A
Cited
US2688747A
Cited
US3183522A
Cited
US3341201A
Cited
US3344433A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |