US2480967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerial discharge device
Assignee: Electric Boat Corp
•
Filing: 1946-01-18
•
Granted: 1949-09-06
•
Expires: 1966-01-18
Abstract
No abstract record available.
Inventors
- 👤 Alexander J Ritchie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:13
CPC Classifications
F; F41; F41H; F41H9/00; F41H9/06; B; B64; B64D; B64D1/00; B64D1/16; B64D1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |