US3470273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Top casting under pressure of rocket motor propellants
Assignee: Imperial Metal Industries Kynoch Ltd
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Filing: 1967-05-17
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Granted: 1969-09-30
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Expires: 1987-05-17
Abstract
No abstract record available.
Inventors
- 👤 Stuart Gordon
- 👤 Arthur Jack Mowate
- 👤 James Paul Morris
- 👤 Alwyn Cunliffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:57
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033; C06B21/0058; B; B29; B29C; B29C43/00; Y; Y10; Y10S; Y10S425/00; Y10S425/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |