US3230975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite movable partition for pressure vessel
Assignee: NORMAND TRUST A TRUST OF NEW YORK CONSISTING OF ARTHUR B COLVIN TRUSTEE
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Filing: 1963-04-12
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Granted: 1966-01-25
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Expires: 1983-04-12
Abstract
No abstract record available.
Inventors
- 👤 Jacques H Mercier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:08
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F24; F24D; F24D3/00; F24D3/10; F24D3/1008; F24D3/1016; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3152; F15B2201/32; F15B2201/40; F15B2201/41; F15B2201/411; F15B2201/415; F15B2201/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE23437E
Cited
US2337771A
Cited
US2380866A
Cited
US2532143A
Cited
US2786488A
Cited
US2877801A
Cited
US2878835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |