US3468008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a tubular part having a passageway formed in the wall thereof
Assignee: CAV Ltd
•
Filing: 1967-02-16
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Granted: 1969-09-23
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Expires: 1987-02-16
Abstract
No abstract record available.
Inventors
- 👤 Stanley Frederick Barber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:14
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/16; F02M61/168; B; B21; B21C; B21C37/00; B21C37/06; B21C37/065; B21C37/15; B21C37/151; B21C37/154; F02M55/00; F02M55/02; F02M61/04; F02M61/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49432
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1979963A
Cited
US2099806A
Cited
US2704882A
Cited
US2996799A
Cited
US3004330A
Cited
US3334401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |