US1668265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning and coating machine for pipes and the like
Assignee: Individual
•
Filing: 1925-11-12
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Granted: 1928-05-01
•
Expires: 1945-11-12
Abstract
No abstract record available.
Inventors
- 👤 Christopher Harold Seraphin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:12
CPC Classifications
B; B65; B65H; B65H81/00; B65H81/06; B65H81/08; F; F16; F16L; F16L58/00; F16L58/02; F16L58/16; Y; Y10; Y10S; Y10S118/00; Y10S118/11; Y10S414/00; Y10S414/123; Y10T; Y10T74/00; Y10T74/18; Y10T74/18024
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) | 1931-05-01 | 1931-10-31 | 1932-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-05-01 | 1935-10-31 | 1936-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-05-01 | 1939-10-31 | 1940-05-01 | $7700.00 | Window Closed / Lapsed |