US2743604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for hydrostatically testing rocket bodies or other open-ended containers
Assignee: Denison Engineering Co
•
Filing: 1952-04-29
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Granted: 1956-05-01
•
Expires: 1972-04-29
Abstract
No abstract record available.
Inventors
- 👤 Henry E Stein
- 👤 Henry V Mog
- 👤 John W Stertzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:21
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/08; G01N3/10; G01N3/12; Y; Y10; Y10T; Y10T279/00; Y10T279/12; Y10T279/1241
Claims Analysis
Total Claims: 0
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US2578728A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |