US3549560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically conducting amine-graphite oxide product
Assignee: Pennwalt Corp
•
Filing: 1968-08-09
•
Granted: 1970-12-22
•
Expires: 1988-08-09
Abstract
No abstract record available.
Inventors
- 👤 Harold G Monsimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:57
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; C; C01; C01B; C01B32/00; C01B32/20; C01B32/21; C01B32/23; H05; H05K; H05K3/00; H05K3/10; H05K3/105
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3084172A
Cited
US3294702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |