US2896378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding and polishing machine
Assignee: Monarch Aluminum Mfg Co
•
Filing: 1955-11-18
•
Granted: 1959-07-28
•
Expires: 1975-11-18
Abstract
No abstract record available.
Inventors
- 👤 John H Keating
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:05
CPC Classifications
B; B24; B24B; B24B21/00; B24B21/008; B24B17/00; B24B17/02; B24B17/025; B24B17/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1787412A
Cited
US2192240A
Cited
US2333507A
Cited
US2579337A
Cited
US2597180A
Cited
US2722787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |