US2801760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoist
Assignee: CBS Broadcasting Inc
•
Filing: 1953-01-09
•
Granted: 1957-08-06
•
Expires: 1973-01-09
Abstract
No abstract record available.
Inventors
- 👤 Christofferson James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:25
CPC Classifications
B; B66; B66D; B66D3/00; B66D3/18; B66D3/20; B66D3/22; B66C; B66C1/00; B66C1/02; B66C1/0212; B66C1/0256; B66C1/0293
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USRE22785E
Cited
US2061044A
Cited
US2320758A
Cited
US2321525A
Cited
US2391580A
Cited
US2390242A
Cited
US2576872A
Cited
US2581742A
Cited
US2620161A
Cited
US2600887A
Cited
US2666876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |