US2674782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making oil retainer sleeves
Assignee: Individual
•
Filing: 1951-06-20
•
Granted: 1954-04-13
•
Expires: 1971-06-20
Abstract
No abstract record available.
Inventors
- 👤 Robert E Surtees
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:34
CPC Classifications
F; F16; F16J; F16J10/00; F16J10/02; F16J10/04; Y; Y10; Y10T; Y10T29/00; Y10T29/47; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/49671
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) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |