Patent US2617672A successfully refreshed from Google Patents.
US2617672A
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Assignee: Individual
•
Filing: 1948-06-23
•
Granted: 1952-11-11
•
Expires: 1968-06-23
Abstract
No abstract record available.
Inventors
- 👤 Harry J Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:27
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/02; F16L23/024; F16D; F16D1/00; F16D1/02; F16D1/033; F16D1/04; F16D1/05; F16D1/06; F16D1/08; F16D1/09; F16D1/092; Y; Y10; Y10S; Y10S285/00; Y10S285/915; Y10T; Y10T403/00; Y10T403/36; Y10T403/364; Y10T403/366
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |