Patent US3533895A successfully refreshed from Google Patents.
US3533895A
Expired / Lapsed
US
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Polyurethane suede product
Assignee: Nairn Williamson Ltd
•
Filing: 1969-07-03
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Granted: 1970-10-13
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Expires: 1989-07-03
Abstract
No abstract record available.
Inventors
- 👤 Kenneth Norcross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:44
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/02; B29C59/04; D; D06; D06N; D06N3/00; D06N3/007; D06N3/0077; D06N3/0086; D06N3/0095; D06N3/04; D06N3/06; D06N3/08; D06N7/00; D06N7/0005; D06N7/0007; D06N7/001; B29K; B29K2995/00; B29K2995/0037; B29K2995/0072; B29K2995/0074; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23957; Y10T442/00; Y10T442/30; Y10T442/3707; Y10T442/378; Y10T442/3813
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3190947A
Cited
US3284274A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |