US3267968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated glassine paper coil form
Assignee: Individual
•
Filing: 1963-03-19
•
Granted: 1966-08-23
•
Expires: 1983-03-19
Abstract
No abstract record available.
Inventors
- 👤 William A Foll
- 👤 Albin M Hancik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:06
CPC Classifications
B; B32; B32B; B32B27/00; H; H04; H04R; H04R9/00; H04R9/02; H04R9/04; H04R9/046; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49005; Y10T29/4902; Y10T29/49071; Y10T29/49075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A SPEAKER VOICE COIL FORM COMPRISING AN OUTER PLY OF GLASSINE PAPER, AN EXTERNAL COATING OF THERMOSETTING RESIN THEREON, AN INTERNAL PLY OF GLASSINE PAPER, AN INNER LAYER OF HEAT SEALABLE POLYETHLENE ON SAID OUTER PLY OF GLASSINE PAPER BONDED TO AN OUTER LAYER OF HEAT SEALABLE POLYETHYLENE ON SAID INTERNAL PLY OF GLASSINE PAPER, AND A COATING OF THERMOSETTING RESIN ON THE INTERIOR OF SAID COIL FORM ON THE INNER PLY OF GLASSINE PAPER.
Claim 2
Dependent Claim
75 words
A SPEAKER VOICE COIL FORM COMPRISING AN OUTER PLY OF GLASSINE PAPER, AN EXTERNAL COATING OF THERMOSETTING RESIN THEREON, AN INTERNAL PLY OF GLASSINE PAPER, AN INNER LAYER OF HEAT SEALABLE POLYETHLENE ON SAID OUTER PLY OF GLASSINE PAPER BONDED TO AN OUTER LAYER OF HEAT SEALABLE POLYETHYLENE ON SAID INTERNAL PLY OF GLASSINE PAPER, AND A COATING OF THERMOSETTING RESIN ON THE INTERIOR OF SAID COIL FORM ON THE INNER PLY OF GLASSINE PAPER.
References Cited (Backward Citations)
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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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |