Patent US5135703A successfully refreshed from Google Patents.
Patent US3468771A successfully refreshed from Google Patents.
US3468771A
Expired / Lapsed
US
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Polyurethane foam structure with polyvinyl-chloride coating
Assignee: International Protective Coatings Corp
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Filing: 1966-04-12
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Granted: 1969-09-23
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Expires: 1986-04-12
Abstract
No abstract record available.
Inventors
- 👤 John Watson Pedlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:25
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/36; C08J9/40; C08J9/42; B; B29; B29C; B29C44/00; B29C44/20; B29C44/32; B29C44/332; E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/044; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/18; C08J2375/00; C08J2375/04; C08J2427/00; Y; Y10; Y10S; Y10S206/00; Y10S206/819; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31598
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) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |