US1551054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Saw-grinding machine
Assignee: E C Atkins & Co
•
Filing: 1923-06-15
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Granted: 1925-08-25
•
Expires: 1943-06-15
Abstract
No abstract record available.
Inventors
- 👤 John F Pribnow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:58
CPC Classifications
B; B23; B23D; B23D63/00; B23D63/08; B23D63/12; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18288; Y10T74/21; Y10T74/2101; Y10T74/2102; Y10T74/2173; Y10T74/2179
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) | 1928-08-24 | 1929-02-23 | 1929-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-08-24 | 1933-02-23 | 1933-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-08-24 | 1937-02-23 | 1937-08-25 | $7700.00 | Window Closed / Lapsed |