Patent US2936749A successfully refreshed from Google Patents.
US2936749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Archer's arrow nock and finger grip
Assignee: Individual
•
Filing: 1958-03-28
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Granted: 1960-05-17
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Expires: 1978-03-28
Abstract
No abstract record available.
Inventors
- 👤 Robert A Chellstorp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:42
CPC Classifications
F; F41; F41B; F41B5/00; F41B5/14; F41B5/1442; F41B5/1469; Y; Y02; Y02T; Y02T70/00; Y02T70/10
Claims Analysis
Total Claims: 0
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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) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |