Patent EP0560141A1 successfully refreshed from Google Patents.
US3507733A
Expired / Lapsed
US
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Manufacture of embossed floor and wall covering using polypropylene coated release sheet
Assignee: Armstrong World Industries Inc
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Filing: 1964-08-06
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Granted: 1970-04-21
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Expires: 1984-08-06
Abstract
No abstract record available.
Inventors
- 👤 Edward P Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:20
CPC Classifications
B; B44; B44C; B44C3/00; B44C3/08; B44C3/085; B29; B29C; B29C33/00; B29C33/56; B29C33/68; B29C43/00; B29C43/006; B29C43/02; B29C43/021; D; D06; D06N; D06N3/00; D06N3/007; D06N3/0077; D06N7/00; D06N7/0005; D06N7/0007; D06N7/001; B29K; B29K2027/00; B29K2027/06; B29K2105/00; B29K2105/25; B29K2105/251; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24612; Y10T428/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-20 | 1973-10-20 | 1974-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-20 | 1977-10-20 | 1978-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-20 | 1981-10-20 | 1982-04-21 | $7700.00 | Window Closed / Lapsed |