US3532529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making synthetic suedes
Assignee: Suehiro Sen-I Kogyo KK
•
Filing: 1967-11-29
•
Granted: 1970-10-06
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Expires: 1987-11-29
Abstract
No abstract record available.
Inventors
- 👤 Hiroshi Endo
- 👤 Kazuo Tokoyoda
- 👤 Yoshinori Saito
- 👤 Takemi Fujiu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:02
CPC Classifications
D; D04; D04B; D04B1/00; D06; D06N; D06N3/00; D06N3/0002; D06N3/0009; D06N3/0015; D06N3/0025; D06N3/0027; D06N3/0029; D06N3/12; D06N3/14; D10; D10B; D10B2403/00; D10B2403/01; D10B2403/012; D10B2403/0121; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/23907; Y10T428/2395
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3284274A
Cited
US3399102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |