US2686980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1949-11-03
•
Granted: 1954-08-24
•
Expires: 1969-11-03
Abstract
No abstract record available.
Inventors
- 👤 Henry E Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:21
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H3/00; A63H3/36; A63H3/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US618969A
Cited
US1537688A
Cited
US2254498A
Cited
US2254810A
Cited
US2317124A
Cited
US2363914A
Cited
US2405808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |