US2501084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Translucent letter
Assignee: THEATRE SPECIALTIES Inc
•
Filing: 1945-07-17
•
Granted: 1950-03-21
•
Expires: 1965-07-17
Abstract
No abstract record available.
Inventors
- 👤 Lloyd C Ownbey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:49
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US570313A
Cited
US513282A
Cited
US661421A
Cited
US803750A
Cited
US878758A
Cited
US911915A
Cited
US865255A
Cited
US962630A
Cited
GB191417265A
Cited
US1373167A
Cited
US1504112A
Cited
US2032895A
Cited
US2106331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |