US3102464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hingeless ventilator
Assignee: Graham White Sales Corp
•
Filing: 1961-01-12
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Granted: 1963-09-03
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Expires: 1981-01-12
Abstract
No abstract record available.
Inventors
- 👤 Kelly Daniel Allcott
- 👤 Jr John E Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:53
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08; F24F13/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A HINGELESS VENTILATOR FOR VENTILATING A COMPARTMENT THROUGH AN OPENING IN A WALL THEREOF, COMPRISING A CLOSURE MEMBER SWINGABLE AGAINST A SIDE OF SAID WALL FOR OPENING AND CLOSING SAID OPENING, SPACED GUIDE MEANS FIXED TO AND INSTANDING FROM AN OPPOSITE SIDE OF SAID WALL, BAR MEANS CARRIED BY SAID CLOSURE MEMBER AND SPRINGURGED INTO ENGAGEMENT WITH AND RIDABLE ON SAID GUIDE MEANS FOR URGING SAID CLOSURE MEMBER AGAINST SAID WALL AND POSITIONING SAID MEMBER RELATIVE TO SAID OPENING, SPACED MEANS CONNECTING SAID CLOSURE MEMBER AND BAR MEANS FOR GUIDING SAID BAR MEANS ALONG SAID GUIDE MEANS AND LIMITING OUTWARD MOVEMENT OF SAID BAR MEANS RELATIVE TO SAID CLOSURE MEMBER, AND MEANS EFFECTIVE OVER THE RANGE OF RELATIVE OUTWARD MOVEMENT OF SAID BAR MEANS AND CLOSURE MEMBER FOR LIMITING TRANSVERSE MOVEMENT OF SAID MEMBER RELATIVE TO SAID WALL.
Claim 2
Dependent Claim
138 words
A HINGELESS VENTILATOR FOR VENTILATING A COMPARTMENT THROUGH AN OPENING IN A WALL THEREOF, COMPRISING A CLOSURE MEMBER SWINGABLE AGAINST A SIDE OF SAID WALL FOR OPENING AND CLOSING SAID OPENING, SPACED GUIDE MEANS FIXED TO AND INSTANDING FROM AN OPPOSITE SIDE OF SAID WALL, BAR MEANS CARRIED BY SAID CLOSURE MEMBER AND SPRINGURGED INTO ENGAGEMENT WITH AND RIDABLE ON SAID GUIDE MEANS FOR URGING SAID CLOSURE MEMBER AGAINST SAID WALL AND POSITIONING SAID MEMBER RELATIVE TO SAID OPENING, SPACED MEANS CONNECTING SAID CLOSURE MEMBER AND BAR MEANS FOR GUIDING SAID BAR MEANS ALONG SAID GUIDE MEANS AND LIMITING OUTWARD MOVEMENT OF SAID BAR MEANS RELATIVE TO SAID CLOSURE MEMBER, AND MEANS EFFECTIVE OVER THE RANGE OF RELATIVE OUTWARD MOVEMENT OF SAID BAR MEANS AND CLOSURE MEMBER FOR LIMITING TRANSVERSE MOVEMENT OF SAID MEMBER RELATIVE TO SAID WALL.
References Cited (Backward Citations)
US1412613A
Cited
US1937952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |