US2160160A
Expired / Lapsed
US
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Assignee: WHITEHALL PATENTS Corp
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Filing: 1937-05-17
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Granted: 1939-05-30
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Expires: 1957-05-17
Abstract
No abstract record available.
Inventors
- 👤 Marinsky Davis
- 👤 Louis H Morin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:31
CPC Classifications
F; F16; F16B; F16B19/00; F16B19/04; F16B19/08; F16B19/10; F16B19/1027; F16B19/1036; F16B19/1045; F16B19/1054; A; A44; A44B; A44B19/00; A44B19/24; A44B19/26; Y; Y10; Y10S; Y10S264/00; Y10S264/66; Y10T; Y10T24/00; Y10T24/25; Y10T24/2561; Y10T24/2586
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) | 1942-05-29 | 1942-11-28 | 1943-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-05-29 | 1946-11-28 | 1947-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-05-29 | 1950-11-28 | 1951-05-30 | $7700.00 | Window Closed / Lapsed |