US1549600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positioning device for wheels of grinding machines
Assignee: Pratt and Whitney Co Inc
•
Filing: 1922-02-23
•
Granted: 1925-08-11
•
Expires: 1942-02-23
Abstract
No abstract record available.
Inventors
- 👤 Paul M Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:18
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/18; B24B49/183; Y; Y10; Y10S; Y10S451/00; Y10S451/90
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) | 1928-08-10 | 1929-02-09 | 1929-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-08-10 | 1933-02-09 | 1933-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-08-10 | 1937-02-09 | 1937-08-11 | $7700.00 | Window Closed / Lapsed |