US3540916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacturing artificial leathers
Assignee: Toyo Tire Corp
•
Filing: 1967-11-06
•
Granted: 1970-11-17
•
Expires: 1987-11-06
Abstract
No abstract record available.
Inventors
- 👤 Kazuo Fukada
- 👤 Yoshiaki Sakata
- 👤 Yoshio Yamada
- 👤 Noribumi Hakoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:14
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/12; D06N3/14; D06N3/142; D06N3/143; C; C08; C08L; C08L75/00; Y; Y10; Y10S; Y10S264/00; Y10S264/62; Y10S264/77; Y10S428/00; Y10S428/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA690347A
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US3275468A
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US3000757A
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US3100721A
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US3190765A
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US3265529A
Cited
US3377190A
Cited
US3369925A
Cited
US3348963A
Cited
US3427179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |