US2496147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for advancing and working plastic material
Assignee: AT&T Inc
•
Filing: 1946-11-13
•
Granted: 1950-01-31
•
Expires: 1966-11-13
Abstract
No abstract record available.
Inventors
- 👤 Samuel E Brillhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:47
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/505; B29C48/62; B29C48/03; B29C48/06; B29C48/30; B29C48/32; B29C48/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US296477A
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US678038A
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US793895A
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US1375623A
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US1297482A
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US1516968A
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US1800180A
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US1902295A
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US1964600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |