US3106983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foamed plastic sound absorbing material
Assignee: Dow Chemical Co
•
Filing: 1960-12-06
•
Granted: 1963-10-15
•
Expires: 1980-12-06
Abstract
No abstract record available.
Inventors
- 👤 Karpovich John
- 👤 Robert J Dufresne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:12
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/8409; E04B2001/8457; E04B2001/8476; E04B2001/848; E04B2001/849; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/2457; Y10T428/249921; Y10T428/249953; Y10T428/249976
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
AN AIRBORNE-SOUND ABSORBING MEANS COMPRISING: A CLOSED CELL FOAMED PLASTIC SHEET HAVING A PLURALITY OF
Claim 2
Dependent Claim
15 words
AN AIRBORNE-SOUND ABSORBING MEANS COMPRISING: A CLOSED CELL FOAMED PLASTIC SHEET HAVING A PLURALITY OF
References Cited (Backward Citations)
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US2285924A
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US2337525A
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US2413568A
Cited
US2671522A
Cited
US2855039A
Cited
US2959242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |