US2172002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic diaphragm press
Assignee: Merritt Engineering & Sales Co
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Filing: 1936-12-31
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Granted: 1939-09-05
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Expires: 1956-12-31
Abstract
No abstract record available.
Inventors
- 👤 Richard W Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:38
CPC Classifications
B; B30; B30B; B30B1/00; B30B1/003; B29; B29C; B29C43/00; B29C43/32; B29C43/36; B29C43/3642; B29C2043/3647
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) | 1942-09-04 | 1943-03-06 | 1943-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-09-04 | 1947-03-06 | 1947-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-09-04 | 1951-03-06 | 1951-09-05 | $7700.00 | Window Closed / Lapsed |