US2630041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for compacting explosive and propellent material
Assignee: Individual
•
Filing: 1947-10-30
•
Granted: 1953-03-03
•
Expires: 1967-10-30
Abstract
No abstract record available.
Inventors
- 👤 James W Perry
- 👤 William R Johnson
- 👤 Joseph H Frazer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:52
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033; C06B21/0041; B; B30; B30B; B30B15/00; B30B15/06; B30B15/065; Y; Y10; Y10S; Y10S425/00; Y10S425/042
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) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |