Patent US3324255A successfully refreshed from Google Patents.
US3324255A
Expired / Lapsed
US
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Audio helmet for monkeys
Assignee: Individual
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Filing: 1964-06-30
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Granted: 1967-06-06
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Expires: 1984-06-30
Abstract
No abstract record available.
Inventors
- 👤 John J Romba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:30
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/10; H04R1/1091; A; A61; A61B; A61B5/00; A61B5/68; A61B5/6801; A61B5/6813; A61B5/6814; A61B5/12; H04R1/1008; H04R5/00; H04R5/033; H04R5/0335
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
AN AUDIOGRAM TESTING HELMET FOR MONKEYS AND THE LIKE COMPRISING AN OUTER SHELL HAVING OPENINGS ADJACENT THE EAR PORTIONS THEREOF, CUSHIONING MATERIAL SECURED TO THE INNER SURFACE OF SAID SHELL, A TUBE EXTENDING THROUGH EACH OF SAID OPENINGS AND SAID CUSHIONING MATERIAL, A LIQUID FILLED CUSHION SURROUNDING THE INNER END OF SAID TUBE, AND MEANS TO MAINTAIN EARPHONES ADJACENT THE EAR PORTIONS.
Claim 2
Dependent Claim
62 words
AN AUDIOGRAM TESTING HELMET FOR MONKEYS AND THE LIKE COMPRISING AN OUTER SHELL HAVING OPENINGS ADJACENT THE EAR PORTIONS THEREOF, CUSHIONING MATERIAL SECURED TO THE INNER SURFACE OF SAID SHELL, A TUBE EXTENDING THROUGH EACH OF SAID OPENINGS AND SAID CUSHIONING MATERIAL, A LIQUID FILLED CUSHION SURROUNDING THE INNER END OF SAID TUBE, AND MEANS TO MAINTAIN EARPHONES ADJACENT THE EAR PORTIONS.
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) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |