US3537871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imitation leather
Assignee: Individual
•
Filing: 1967-11-24
•
Granted: 1970-11-03
•
Expires: 1987-11-24
Abstract
No abstract record available.
Inventors
- 👤 Tadayo Kaneko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:02
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/12; D06N3/125; D06N3/126; B; B32; B32B; B32B27/00; D06N3/0002; D06N3/0015; D06N3/0018; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24438; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249984; Y10T428/29; Y10T428/2904; Y10T428/2909; Y10T428/31504; Y10T428/31551; Y10T428/31558; Y10T428/31855; Y10T428/31909; Y10T428/31928; Y10T442/00; Y10T442/20; Y10T442/2008; Y10T442/2139
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3103447A
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US2754291A
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US2884340A
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US2957783A
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US3048496A
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US3223751A
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US3294579A
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US3298851A
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US3298856A
Cited
US3436303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |