Patent US2358271A successfully refreshed from Google Patents.
US2358271A
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Cylinder and piston and method of producing a working seal therebetween
Assignee: Individual
•
Filing: 1942-02-07
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Granted: 1944-09-12
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Expires: 1962-02-07
Abstract
No abstract record available.
Inventors
- 👤 Williams Judson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:56
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/002; F02B; F02B75/00; F02B75/34; F16; F16J; F16J10/00; F16J10/02; F02B75/02; F02B2075/022; F02B2075/025; Y; Y10; Y10T; Y10T29/00; Y10T29/47; Y10T29/49; Y10T29/49229; Y10T29/49249; Y10T29/49256; Y10T29/49758
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) | 1947-09-12 | 1948-03-13 | 1948-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-09-12 | 1952-03-13 | 1952-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-09-12 | 1956-03-13 | 1956-09-12 | $7700.00 | Window Closed / Lapsed |