US3203506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio communication means between elevator cage and motor control
Assignee: ACE Machinery Ltd
•
Filing: 1962-08-15
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Granted: 1965-08-31
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Expires: 1982-08-15
Abstract
No abstract record available.
Inventors
- 👤 Cummins Peter Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:50
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/60; B; B66; B66B; B66B1/00; B66B1/34; B66B1/3415; B66B1/3423; B66B1/3438; B66B1/3446; B66B1/3461; B66C; B66C13/00; B66C13/18; B66C13/40; B66C2700/00; B66C2700/08; B66C2700/088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |