US2949276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Babson Brothers Co
•
Filing: 1959-06-25
•
Granted: 1960-08-16
•
Expires: 1979-06-25
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Merritt
- 👤 Chester A Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:04
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/032; A; A01; A01J; A01J5/00; A01J5/04; A01J5/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE76693C
Cited
US2838066A
Cited
US697358A
Cited
US1183343A
Cited
US1487593A
Cited
US2146336A
Cited
US2779608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |