US3455773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyacetal leather-like sheet material and process of making same
Assignee: Celanese Canada Inc
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Filing: 1966-02-01
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Granted: 1969-07-15
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Expires: 1986-02-01
Abstract
No abstract record available.
Inventors
- 👤 Joseph Donatien Leo Tessier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:41
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/12; D06N3/0043; D06N3/0052; B; B29; B29C; B29C48/00; B29C48/001; B29C48/0012; B29C48/0018; B29C48/03; B29C48/07; B29C48/08; B29C48/16; B29C48/17; B29K; B29K2105/00; B29K2105/04; B29K2995/00; B29K2995/0037; B29K2995/0072; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24132; Y10T428/24744; Y10T428/26
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) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |