US3139783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drum key holder
Assignee: Individual
•
Filing: 1963-05-16
•
Granted: 1964-07-07
•
Expires: 1983-05-16
Abstract
No abstract record available.
Inventors
- 👤 Philip O Grant
- 👤 William F Hagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:24
CPC Classifications
G; G10; G10D; G10D13/00; G10D13/01; G10D13/02; G10D13/10; G10D13/20
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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |