US3412364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact device
Assignee: Hamburger Flugzeugbau GmbH
•
Filing: 1966-04-29
•
Granted: 1968-11-19
•
Expires: 1986-04-29
Abstract
No abstract record available.
Inventors
- 👤 Grawe Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:37
CPC Classifications
H; H01; H01R; H01R39/00; H01H; H01H1/00; H01H1/60
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US974833A
Cited
US1145926A
Cited
US1115848A
Cited
US1246825A
Cited
US1271793A
Cited
US2205688A
Cited
US2555997A
Cited
US2846649A
Cited
US2833946A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |