US3429706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation-sensitive system
Assignee: 3M Co
•
Filing: 1965-12-29
•
Granted: 1969-02-25
•
Expires: 1985-12-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Shepard
- 👤 Benjamin L Shely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:43
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/705; Y; Y10; Y10S; Y10S430/00; Y10S430/137
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |