US2948031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston molding core
Assignee: Individual
•
Filing: 1957-09-09
•
Granted: 1960-08-09
•
Expires: 1977-09-09
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:26
CPC Classifications
B; B22; B22D; B22D15/00; B22D15/02; Y; Y10; Y10S; Y10S425/00; Y10S425/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2129351A
Cited
US2286994A
Cited
US2260462A
Cited
US2527537A
Cited
US2711568A
Cited
US2676372A
Cited
US2789329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |