Patent US2477549A successfully refreshed from Google Patents.
US2477549A
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US
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Explosive composition
Assignee: Permanente Metals Corp
•
Filing: 1947-01-22
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Granted: 1949-07-26
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Expires: 1967-01-22
Abstract
No abstract record available.
Inventors
- 👤 William F Van Loenen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:44
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/18; C06B45/30; C06B45/32; C06B33/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191022030A
Cited
US1243231A
Cited
GB126740A
Cited
US1884993A
Cited
US2101904A
Cited
GB492888A
Cited
GB559348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |