US2485238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface finishing of plastic sheets
Assignee: Girdler Corp
•
Filing: 1946-02-25
•
Granted: 1949-10-18
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Expires: 1966-02-25
Abstract
No abstract record available.
Inventors
- 👤 Willard H Hickok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:32
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/02; B29C35/00; B29C35/02; B29C35/12; B29K; B29K2027/00; B29K2027/06; B29K2031/00; B29K2031/04; B29K2033/00; B29K2033/04; B29K2033/12; Y; Y10; Y10S; Y10S264/00; Y10S264/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1306846A
Cited
US2070023A
Cited
US1986637A
Cited
US2215244A
Cited
US2310619A
Cited
US2276035A
Cited
US2307344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-17 | 1953-04-18 | 1953-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-17 | 1957-04-18 | 1957-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-17 | 1961-04-18 | 1961-10-18 | $7700.00 | Window Closed / Lapsed |