US3282377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevated work-supporting platform
Assignee: REDEMAN CORP
•
Filing: 1965-03-12
•
Granted: 1966-11-01
•
Expires: 1985-03-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Pfeiffer
- 👤 Harold M Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:27
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
AN ELEVATED WORK-SUPPORTING PLATFORM COMPRISING, IN COMBINATION: A PAIR OF SPACED-APART VERTICAL HOISTS, A DECK, A RIGID FRAMEWORK FOR THE DECK, SAID FRAMEWORK INCLUDING A PAIR OF PARALLEL STRINGERS EXTENDING LONGITUDINALLY OF THE FRAMEWORK ONE AT ONE SIDE AND THE OTHER AT THE OTHER SIDE OF THE LONGITUDIAL MEDIAN LINE OF THE FRAMEWORK FORMED SO THAT THE UNDERNEATH SURFACE SERVES AS A TRACK RAIL, AT LEAST ONE TROLLEY EXTENDING TRANSVERSELY OF THE FRAMEWORK IN A POSITION UNDERLYING THE FRAMEWORK AT ONE END THEREOF AND PROVIDING WHEELS AT EACH OF THE OPPOSITE SIDES TRACKING UPON SAID UNDERNEATH SURFACE OF THE RAILS, MEANS FOR MOUNTING THE TROLLEY UPON THE HEAD END OF ONE OF THE HOISTS, AND MEANS FOR MOUNTING THE END OF THE FRAMEWORK WHICH LIES OPPOSITE THAT OCCUPIED BY THE TROLLEY UPON THE HEAD END OF THE OTHER HOIST, HOLD-DOWN MEANS BEING PROVIDED TO PREVENT THE RAILS BEING LIFTED OFF THE WHEELS.
Claim 2
Dependent Claim
152 words
AN ELEVATED WORK-SUPPORTING PLATFORM COMPRISING, IN COMBINATION: A PAIR OF SPACED-APART VERTICAL HOISTS, A DECK, A RIGID FRAMEWORK FOR THE DECK, SAID FRAMEWORK INCLUDING A PAIR OF PARALLEL STRINGERS EXTENDING LONGITUDINALLY OF THE FRAMEWORK ONE AT ONE SIDE AND THE OTHER AT THE OTHER SIDE OF THE LONGITUDIAL MEDIAN LINE OF THE FRAMEWORK FORMED SO THAT THE UNDERNEATH SURFACE SERVES AS A TRACK RAIL, AT LEAST ONE TROLLEY EXTENDING TRANSVERSELY OF THE FRAMEWORK IN A POSITION UNDERLYING THE FRAMEWORK AT ONE END THEREOF AND PROVIDING WHEELS AT EACH OF THE OPPOSITE SIDES TRACKING UPON SAID UNDERNEATH SURFACE OF THE RAILS, MEANS FOR MOUNTING THE TROLLEY UPON THE HEAD END OF ONE OF THE HOISTS, AND MEANS FOR MOUNTING THE END OF THE FRAMEWORK WHICH LIES OPPOSITE THAT OCCUPIED BY THE TROLLEY UPON THE HEAD END OF THE OTHER HOIST, HOLD-DOWN MEANS BEING PROVIDED TO PREVENT THE RAILS BEING LIFTED OFF THE WHEELS.
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |