US3489242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustical panel comprising viscoelastic material with heavy filler particles
Assignee: Uniroyal Chemical Co Inc
•
Filing: 1969-04-01
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Granted: 1970-01-13
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Expires: 1989-04-01
Abstract
No abstract record available.
Inventors
- 👤 Edward K Gladding
- 👤 Kenneth D Ziegel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:31
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B27/00; B32B27/18; B32B27/20; B32B27/30; B32B27/306; B32B27/40; C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/65; C08G18/66; C08G18/6666; C08G18/667; C08G18/6674; C08K; C08K3/00; C08K3/01; C08K3/013; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; B32B2307/00; B32B2307/10; C08G2350/00; E04B2001/742; E04B2001/8457; E04B2001/8461
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2999041A
Cited
US3056707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |