US2580231A
Expired / Lapsed
US
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Hanger
Assignee: Patent and Licensing Corp
•
Filing: 1947-12-06
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Granted: 1951-12-25
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Expires: 1967-12-06
Abstract
No abstract record available.
Inventors
- 👤 Raymond R Lamm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:53
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/08; F16L3/12; F16L59/00; F16L59/02; F16L59/028; Y; Y10; Y10S; Y10S52/00; Y10S52/06; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043; Y10T156/1044; Y10T156/1046; Y10T403/00; Y10T403/47
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) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |