US2833278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective mouthpiece
Assignee: Individual
•
Filing: 1956-04-05
•
Granted: 1958-05-06
•
Expires: 1976-04-05
Abstract
No abstract record available.
Inventors
- 👤 Harold M Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:13
CPC Classifications
A; A63; A63B; A63B71/00; A63B71/08; A63B71/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2590118A
Cited
US2685133A
Cited
US2706478A
Cited
US2685134A
Cited
US2705492A
Cited
US2702032A
Cited
US2750941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |