US3512252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroformed inner tube for tank unit
Assignee: Simmonds Precision Products Inc
•
Filing: 1966-09-30
•
Granted: 1970-05-19
•
Expires: 1986-09-30
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Sargent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:14
CPC Classifications
C; C25; C25D; C25D1/00; C25D1/02; B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/16; G; G01; G01F; G01F23/00; G01F23/22; G01F23/26; G01F23/263; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016; Y10T29/49018; Y10T29/49117
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123751A
Cited
US2216893A
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US2592614A
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US2613178A
Cited
GB696900A
Cited
GB733359A
Cited
US2793989A
Cited
US2759134A
Cited
US2789435A
Cited
US3148314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |