US3267749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ganged control with variable angular difference
Assignee: Nortel Networks Ltd
•
Filing: 1963-12-09
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Granted: 1966-08-23
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Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 Robert H Tanner
- 👤 Sydney M K Horne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:10
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
93 words
IN COMBINATION, A DRIVE MECHANISM AND A GANGED CONTROL COMPRISING: FIRST AND SECOND CONTROLS EACH HAVING A ROTATABLE CONTROL SHAFT WITH A STOP POSITION; FIRST AND SECOND ROTATABLE CONTROL KNOBS; A FIRST HELICAL SPRING CONCENTRICALLY CONNECTED AT ONE END TO THE SHAFT OF THE FIRST CONTROL AND AT THE OTHER END TO SAID FIRST ROTATABLE CONTROL KNOB, AND A SECOND HELICAL SPRING CONCENTRICALLY CONNECTED AT ONE END TO THE SHAFT OF THE SECOND CONTROL AND AT THE OTHER END TO THE SECOND ROTATABLE CONTROL KNOB; SAID KNOBS BEING DISENGAGEABLY COUPLED TO EACH OTHER.
References Cited (Backward Citations)
US2941175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |