US1386085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve-grinder
Assignee: Albertson and Co Inc
•
Filing: 1920-10-13
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Granted: 1921-08-02
•
Expires: 1940-10-13
Abstract
No abstract record available.
Inventors
- 👤 Frans O Albertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:59
CPC Classifications
B; B24; B24B; B24B15/00; B24B15/08; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5104; Y10T29/5105; Y10T29/5108; Y10T74/00; Y10T74/18; Y10T74/18416; Y10T74/18424; Y10T74/18448; Y10T74/19; Y10T74/19191; Y10T74/19195
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) | 1924-08-01 | 1925-01-31 | 1925-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-08-01 | 1929-01-31 | 1929-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-08-01 | 1933-01-31 | 1933-08-02 | $7700.00 | Window Closed / Lapsed |