US3480569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer foams reinforced with polyamides,polyesters and polycarbonates
Assignee: Monsanto Co
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Filing: 1966-01-03
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Granted: 1969-11-25
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Expires: 1986-01-03
Abstract
No abstract record available.
Inventors
- 👤 David C Chappelear
- 👤 Thomas J Stolki
- 👤 Quirino A Trementozzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:59
CPC Classifications
C; C08; C08L; C08L77/00; B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/46; B29C44/50; B29C44/505; C08J; C08J9/00; C08J9/0085; C08K; C08K7/00; C08K7/02; C08L23/00; C08L23/02; C08L25/00; C08L25/02; C08L25/04; C08L67/00; C08L67/02; C08L69/00; B29K; B29K2105/00; B29K2105/06; B29K2105/12; B29K2267/00; B29K2269/00; B29K2277/00
Claims Analysis
Total Claims: 0
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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) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |