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US2136855A
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Assignee: Individual
•
Filing: 1938-04-05
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Granted: 1938-11-15
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Expires: 1958-04-05
Abstract
No abstract record available.
Inventors
- 👤 Owen G Lancaster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:36
CPC Classifications
A; A45; A45F; A45F5/00; A45F5/02; F; F21; F21V; F21V21/00; F21V21/08; F21V21/088; F21V21/0885; A45F5/1566; Y; Y10; Y10S; Y10S224/00; Y10S224/929; Y10S224/93; Y10T; Y10T24/00; Y10T24/13; Y10T24/1376; Y10T24/44; Y10T24/44641; Y10T24/4465
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) | 1941-11-14 | 1942-05-16 | 1942-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-14 | 1946-05-16 | 1946-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-14 | 1950-05-16 | 1950-11-15 | $7700.00 | Window Closed / Lapsed |