Patent US1148472A successfully refreshed from Google Patents.
US1148472A
Expired / Lapsed
US
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Contracting device for piston-rings.
Assignee: Individual
•
Filing: 1911-10-18
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Granted: 1915-07-27
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Expires: 1931-10-18
Abstract
No abstract record available.
Inventors
- 👤 Frank A Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:52
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/02; B25B27/12; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1418; Y10T24/142; Y10T24/1441; Y10T24/1443; Y10T24/21; Y10T24/2189; Y10T29/00; Y10T29/53; Y10T29/536
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) | 1918-07-26 | 1919-01-25 | 1919-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-07-26 | 1923-01-25 | 1923-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-07-26 | 1927-01-25 | 1927-07-27 | $7700.00 | Window Closed / Lapsed |