US3496118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iiib-vb compounds
Assignee: Bell and Howell Co
•
Filing: 1966-04-19
•
Granted: 1970-02-17
•
Expires: 1986-04-19
Abstract
No abstract record available.
Inventors
- 👤 Robert K Willardson
- 👤 Worth P Allred
- 👤 James E Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:19
CPC Classifications
C; C30; C30B; C30B15/00; C30B29/00; C30B29/10; C30B29/40; H; H10; H10P; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/107
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2858275A
Cited
US3277006A
Cited
US3344071A
Cited
US3278342A
Cited
US3371051A
Cited
US3414441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |