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US3421955A
Expired / Lapsed
US
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Diesters of n-nitro-imino-bis-carboxylic acids,useful as additives in explosives or propellants
Assignee: Wyeth Holdings LLC
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Filing: 1967-02-23
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Granted: 1969-01-14
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Expires: 1987-02-23
Abstract
No abstract record available.
Inventors
- 👤 Martin Hauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:37
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/04; C06B45/06; C06B45/10; C06B25/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2978498A
Cited
US3248420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |