US2557581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote control system
Assignee: Rock Ola Manufacturing Corp
•
Filing: 1947-02-15
•
Granted: 1951-06-19
•
Expires: 1967-02-15
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Triman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:22
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/54; H04B3/546; H02; H02J; H02J13/00; H02J13/13; H02J13/1311; H02J13/1313; H04B14/00; H04B14/02; H04B14/026; H04B2203/00; H04B2203/54; H04B2203/5404; H04B2203/5416; Y; Y02; Y02E; Y02E60/00; Y04; Y04S; Y04S40/00; Y04S40/12; Y04S40/121
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |