Patent US3538828A successfully refreshed from Google Patents.
Patent US3391674A successfully refreshed from Google Patents.
US3391674A
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Animal operated door opening device
Assignee: ROBERT P BURLEIGH
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Filing: 1966-06-08
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Granted: 1968-07-09
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Expires: 1986-06-08
Abstract
No abstract record available.
Inventors
- 👤 Robert P Burleigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:39
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/28; E06B7/32; A; A01; A01K; A01K1/00; A01K1/02; A01K1/035; A01K15/00; A01K15/02; Y; Y10; Y10S; Y10S16/00; Y10S16/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
AN ANIMAL OPERATED DOOR-OPENER FOR USE BY DOGS AND OTHER PET ANIMALS, INCLUDING A SPACER PORTION SECURED TO THE FREE EDGE-ZONE OF THE DOOR AND EXTENDING OUTWARDLY THEREFROM BELOW THE CONVENTIONAL DOOR KNOB OR HANDLE OF THE DOOR, A SNOUT-ENGAGEABLE PORTION CONNECTED WITH THE SPACER PORTION AND DISPOSED AT AN ANGLE THERETO AND EXTENDING IN A DIRECTION AWAY FROM SAID FREE-EDGE ZONE, WITH AT LEAST A PORTION THEREOF FLARED OUTWARDLY.
Claim 2
Dependent Claim
70 words
AN ANIMAL OPERATED DOOR-OPENER FOR USE BY DOGS AND OTHER PET ANIMALS, INCLUDING A SPACER PORTION SECURED TO THE FREE EDGE-ZONE OF THE DOOR AND EXTENDING OUTWARDLY THEREFROM BELOW THE CONVENTIONAL DOOR KNOB OR HANDLE OF THE DOOR, A SNOUT-ENGAGEABLE PORTION CONNECTED WITH THE SPACER PORTION AND DISPOSED AT AN ANGLE THERETO AND EXTENDING IN A DIRECTION AWAY FROM SAID FREE-EDGE ZONE, WITH AT LEAST A PORTION THEREOF FLARED OUTWARDLY.
References Cited (Backward Citations)
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Cited
US2275887A
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US2687114A
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US2914024A
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US3121907A
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US3204608A
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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) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |