US2828667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moving picture screen
Assignee: Individual
•
Filing: 1954-02-01
•
Granted: 1958-04-01
•
Expires: 1974-02-01
Abstract
No abstract record available.
Inventors
- 👤 Milton H Grossman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:13
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/60
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1279262A
Cited
US1535985A
Cited
US1550880A
Cited
US1676553A
Cited
US1985460A
Cited
US1854864A
Cited
US2053173A
Cited
US1828749A
Cited
US1995964A
Cited
US2132904A
Cited
US2152297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |