Patent US4127864A successfully refreshed from Google Patents.
US2396243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motion-picture projector
Assignee: Sears Roebuck and Co
•
Filing: 1943-09-17
•
Granted: 1946-03-12
•
Expires: 1963-09-17
Abstract
No abstract record available.
Inventors
- 👤 Earl D Boisselier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:34
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/56; G03B1/58; G03B21/00; G03B21/14; G03B21/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1949-03-11 | 1949-09-10 | 1950-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-03-11 | 1953-09-10 | 1954-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-03-11 | 1957-09-10 | 1958-03-12 | $7700.00 | Window Closed / Lapsed |