US3541833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming pressure vessel ends
Assignee: MERCIER JACQUES H 180 GLENBROOK ROAD STAMFORD
•
Filing: 1968-07-10
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Granted: 1970-11-24
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Expires: 1988-07-10
Abstract
No abstract record available.
Inventors
- 👤 Jean Mercier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:39
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F15B1/106; B; B21; B21D; B21D39/00; B21D39/04; B21D51/00; B21D51/16; B21D51/24; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3152; F15B2201/3156; F15B2201/40; F15B2201/415; F15B2201/4155; F15B2201/43; F15B2201/435; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US355144A
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US1753465A
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US2189852A
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US2218102A
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US2276684A
Cited
US2309181A
Cited
US2405201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |