Patent US3371208A successfully refreshed from Google Patents.
US3371208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray film cassette having means for removing the films while maintaining a light-tight condition
Assignee: Polaroid Corp
•
Filing: 1965-07-12
•
Granted: 1968-02-27
•
Expires: 1985-07-12
Abstract
No abstract record available.
Inventors
- 👤 Robert D Brackett
- 👤 Herman E Erikson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:55
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2740897A
Cited
US3174039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |