US2971218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for continuously curing elastomeric material in sheet form
Assignee: American Biltrite Inc
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Filing: 1957-11-14
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Granted: 1961-02-14
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Expires: 1977-11-14
Abstract
No abstract record available.
Inventors
- 👤 John M Bierer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:57
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/0277; B29C35/04; B29C35/06; B29C35/049; B29K; B29K2021/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190005854A
Cited
DE327468C
Cited
GB490498A
Cited
FR1005482A
Cited
US2656565A
Cited
US2681612A
Cited
US2663052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-14 | 1964-08-15 | 1965-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-14 | 1968-08-15 | 1969-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-14 | 1972-08-15 | 1973-02-14 | $7700.00 | Window Closed / Lapsed |