US2544414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-pressure apparatus
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1946-11-22
•
Granted: 1951-03-06
•
Expires: 1966-11-22
Abstract
No abstract record available.
Inventors
- 👤 Percy W Bridgman
- 👤 Raymond R Ridgway
- 👤 Pyl Edward Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:09
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/02; B30B11/04; B30B11/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US301329A
Cited
US1652940A
Cited
US1965106A
Cited
US2082904A
Cited
US2085105A
Cited
US2423914A
Cited
US2420405A
Cited
US2403912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |