Patent US2880464A successfully refreshed from Google Patents.
US2880464A
Expired / Lapsed
US
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Precision compensating of calendered sheets
Assignee: Congoleum Industries Inc
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Filing: 1958-02-07
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Granted: 1959-04-07
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Expires: 1978-02-07
Abstract
No abstract record available.
Inventors
- 👤 Walter E Benedict
- 👤 Joseph F Dobry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:46
CPC Classifications
D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0039; D06N7/0057; B; B29; B29C; B29C43/00; B29C43/22; B29C43/28; B29C70/00; B29C70/58; Y; Y10; Y10S; Y10S425/00; Y10S425/235
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) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |