US3449479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for coating the interior surface of a polyolefin article with an impermeable polymer
Assignee: Phillips Petroleum Co
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Filing: 1966-06-17
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Granted: 1969-06-10
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Expires: 1986-06-17
Abstract
No abstract record available.
Inventors
- 👤 Martin R Cines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:28
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/22; B29; B29C; B29C49/00; B29C49/22; B29C2949/00; B29C2949/07; B29C2949/081; B29C2949/0811; B29C2949/082; B29C2949/0829; B29C2949/30; B29C2949/3008; B29C2949/3012; B29C2949/3016; B29C2949/302; B29C2949/3024; B29C2949/3026; B29C2949/3064; B29C2949/3074; B29C2949/3082
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) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |