Patent US3189461A successfully refreshed from Google Patents.
Patent US3240484A successfully refreshed from Google Patents.
US3240484A
Expired / Lapsed
US
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Door operator
Assignee: Cleveland Detroit Corp
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Filing: 1961-10-18
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Granted: 1966-03-15
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Expires: 1981-10-18
Abstract
No abstract record available.
Inventors
- 👤 Klamp William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:22
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/665; E05F15/668; E05F15/67; E05D; E05D13/00; E05D13/10; E05D13/12; E05D13/1207; E05D13/1215; E05F15/681; E05F15/684; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/43; E05Y2201/434; E05Y2201/60; E05Y2201/604; E05Y2201/622; E05Y2201/644; E05Y2201/656; E05Y2201/708; E05Y2400/00; E05Y2400/10; E05Y2400/30; E05Y2400/302; E05Y2600/00; E05Y2600/40; E05Y2600/46; E05Y2900/00; E05Y2900/10; E05Y2900/106
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A GARAGE DOOR OPERATOR FOR RECIPROCATING AN OVERHEAD DOOR ALONG A PATH BETWEEN OPEN AND CLOSED POSITIONS, A CHAIN EXTENDING ALONG THE PATH OF TRAVEL OF SAID DOOR, A REVERSIBLE MOTOR, A SPROCKET WHEEL IN MESH WITH SAID CHAIN, DRIVE MEANS INTERCONNECTING SAID MOTOR AND SPROCKET WHEEL, MEANS CONNECTING SAID MOTOR TO SAID DOOR WHEREBY OPERATION OF SAID MOTOR TO ROTATE SAID SPROCKET WHEEL CAUSES SAID MOTOR AND DOOR TO MOVE ALONG SAID CHAIN, MEANS SUPPORTING THE ENDS OF SAID CHAIN AT
Claim 2
Dependent Claim
82 words
A GARAGE DOOR OPERATOR FOR RECIPROCATING AN OVERHEAD DOOR ALONG A PATH BETWEEN OPEN AND CLOSED POSITIONS, A CHAIN EXTENDING ALONG THE PATH OF TRAVEL OF SAID DOOR, A REVERSIBLE MOTOR, A SPROCKET WHEEL IN MESH WITH SAID CHAIN, DRIVE MEANS INTERCONNECTING SAID MOTOR AND SPROCKET WHEEL, MEANS CONNECTING SAID MOTOR TO SAID DOOR WHEREBY OPERATION OF SAID MOTOR TO ROTATE SAID SPROCKET WHEEL CAUSES SAID MOTOR AND DOOR TO MOVE ALONG SAID CHAIN, MEANS SUPPORTING THE ENDS OF SAID CHAIN AT
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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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |