US3527653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of a microporous artificial leather coating
Assignee: Glanzstoff AG
•
Filing: 1967-06-16
•
Granted: 1970-09-08
•
Expires: 1987-06-16
Abstract
No abstract record available.
Inventors
- 👤 Erwin Sommer
- 👤 Klaus Gerlach
- 👤 Werner Riess
- 👤 Helmut Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:02
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/12; D06N3/14; C; C08; C08J; C08J9/00; C08J9/28; C08J2201/00; C08J2201/04; C08J2201/054; C08J2201/0542; C08J2201/0544; C08J2375/00; C08J2375/04; Y; Y10; Y10S; Y10S428/00; Y10S428/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2871218A
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US2919205A
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US3100721A
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US3190765A
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US3214290A
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US3238055A
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US3424604A
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US3348963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |