US3158480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark development of photosensitive vesicular print material
Assignee: International Business Machines Corp
•
Filing: 1960-07-20
•
Granted: 1964-11-24
•
Expires: 1980-07-20
Abstract
No abstract record available.
Inventors
- 👤 John L Adkisson
- 👤 Betts Peter
- 👤 Claris L Donelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:57
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1770493A
Cited
GB372637A
Cited
US2060985A
Cited
US2445063A
Cited
US2692178A
Cited
US2691587A
Cited
US2911299A
Cited
US2908572A
Cited
GB872637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |