US2161044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna reel
Assignee: Heintz & Kaufman Ltd
•
Filing: 1935-03-23
•
Granted: 1939-06-06
•
Expires: 1955-03-23
Abstract
No abstract record available.
Inventors
- 👤 Ralph M Heintz
- 👤 Henry W A Gruenhagen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:53
CPC Classifications
H; H02; H02G; H02G11/00; H02G11/02; B; B66; B66D; B66D1/00; B66D1/28; B66D2700/00; B66D2700/01; B66D2700/0183; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2042; Y10T74/20474; Y10T74/20516
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-06-05 | 1942-12-05 | 1943-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-06-05 | 1946-12-05 | 1947-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-06-05 | 1950-12-05 | 1951-06-06 | $7700.00 | Window Closed / Lapsed |