US2632852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave guide feed
Assignee: Individual
•
Filing: 1945-09-17
•
Granted: 1953-03-24
•
Expires: 1965-09-17
Abstract
No abstract record available.
Inventors
- 👤 Sichak William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:15
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2283935A
Cited
US2461005A
Cited
FR878830A
Cited
US2460109A
Cited
US2415807A
Cited
US2433368A
Cited
US2429640A
Cited
US2483575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |