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Patent US2179045A successfully refreshed from Google Patents.
US2179045A
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Assignee: Individual
•
Filing: 1938-03-03
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Granted: 1939-11-07
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Expires: 1958-03-03
Abstract
No abstract record available.
Inventors
- 👤 Lewis Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:17
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/11; F16L55/1108; Y; Y10; Y10S; Y10S411/00; Y10S411/919; Y10T; Y10T292/00; Y10T292/20; Y10T292/205; Y10T292/209; Y10T292/48; Y10T292/509; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5854; Y10T70/5863; Y10T70/5867
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) | 1942-11-06 | 1943-05-08 | 1943-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-11-06 | 1947-05-08 | 1947-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-11-06 | 1951-05-08 | 1951-11-07 | $7700.00 | Window Closed / Lapsed |