US3166148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm means for acoustic translating devices
Assignee: —
•
Filing: —
•
Granted: 1965-01-19
•
Expires: 1982-01-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:29
CPC Classifications
H; H04; H04R; H04R7/00; H04R7/16; H04R7/18; H04R7/20; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4957; Y10T29/49575
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A DIAPHRAGM MEANS FOR AN ACOUSTIC TRANSLATING DEVICE COMPRISING A LAMINATE SHEET INCLUDING TWO MATERIALS OF DIFFERING ELASTIC MODULII, PART OF SAID LAMINATE SHEET DEFINING A DIAPHRAGM PORTION, ANOTHER PART RESTRICTED TO THE MATERIAL OF LOWER ELASTIC MODULUS DEFINING A DIAPHRAGM
Claim 2
Dependent Claim
41 words
A DIAPHRAGM MEANS FOR AN ACOUSTIC TRANSLATING DEVICE COMPRISING A LAMINATE SHEET INCLUDING TWO MATERIALS OF DIFFERING ELASTIC MODULII, PART OF SAID LAMINATE SHEET DEFINING A DIAPHRAGM PORTION, ANOTHER PART RESTRICTED TO THE MATERIAL OF LOWER ELASTIC MODULUS DEFINING A DIAPHRAGM
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-19 | 1968-07-20 | 1969-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-19 | 1972-07-20 | 1973-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-19 | 1976-07-20 | 1977-01-19 | $7700.00 | Window Closed / Lapsed |