Patent US4038639A successfully refreshed from Google Patents.
US4038639A
Expired / Lapsed
US
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Bird perch alarm
Assignee: Individual
•
Filing: 1976-01-16
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Granted: 1977-07-26
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Expires: 1996-01-16
Abstract
Abstract A bird perch alarm characterized by a perch assembly responsive to the weight of a bird, the movement thereof completing electrical circuitry and causing an audible signal. Resilient means form a part of the perch assembly, affording critical sensitivity to the bird's weight.
Inventors
- 👤 Glenn M. Kuebler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:43
CPC Classifications
A; A01; A01M; A01M29/00; A01M29/06; A01M29/16; Y; Y10; Y10S; Y10S119/00; Y10S119/903
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
88 words
A bird perch alarm comprising a movable bird perch assembly mounted on a housing and responsive to the weight of an alighting bird, said bird perch assembly including a cap mounted on a neck of said housing and a plunger extending into said housing through said neck, resilient material disposed within said cap compressing upon movement of said cap on said neck by an alighting bird, audible means responsive to movement of said plunger, and an electrical circuit to said audible means completed upon movement of said plunger.
Claim 2
Dependent Claim
88 words
A bird perch alarm comprising a movable bird perch assembly mounted on a housing and responsive to the weight of an alighting bird, said bird perch assembly including a cap mounted on a neck of said housing and a plunger extending into said housing through said neck, resilient material disposed within said cap compressing upon movement of said cap on said neck by an alighting bird, audible means responsive to movement of said plunger, and an electrical circuit to said audible means completed upon movement of said plunger.
Claim 3
Dependent Claim
14 words
The bird perch alarm of claim 1 where said resilient material is a foam.
References Cited (Backward Citations)
US3041911A
Cited
US3847120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |