US3478784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-layer vessel
Assignee: Nooter Corp
•
Filing: 1968-01-22
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Granted: 1969-11-18
•
Expires: 1988-01-22
Abstract
No abstract record available.
Inventors
- 👤 Charles G Woelfer
- 👤 Albert D Dohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:42
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/24; F; F17; F17C; F17C1/00; F17C1/02; F17C1/04; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/05; F17C2201/054; F17C2201/056; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0604; F17C2203/0612; F17C2203/0614; F17C2203/0624; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2209/00; F17C2209/21; F17C2209/2154; F17C2209/22; F17C2209/221; F17C2209/23; F17C2209/232; F17C2260/00; F17C2260/01; F17C2260/011; F17C2260/013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2209402A
Cited
US2690412A
Cited
US2799524A
Cited
US2884958A
Cited
US3104682A
Cited
US3092148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |