US3448338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stage lighting control units
Assignee: Individual
•
Filing: 1966-06-24
•
Granted: 1969-06-03
•
Expires: 1986-06-24
Abstract
No abstract record available.
Inventors
- 👤 Frederick Percy Bentham
- 👤 Phillip Robert Sheridan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:11
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/10; G05B19/106; G05B19/12; G05B19/16; H; H05; H05B; H05B47/00; H05B47/10; H05B47/155; G05B2219/00; G05B2219/20; G05B2219/23; G05B2219/23204; G05B2219/23421
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2939372A
Cited
US3060347A
Cited
US3004193A
Cited
US3221214A
Cited
US3207949A
Cited
US3147469A
Cited
US3265932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |