US2688768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuously making plastic-containing articles
Assignee: AT&T Inc
•
Filing: 1950-12-06
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Granted: 1954-09-14
•
Expires: 1970-12-06
Abstract
No abstract record available.
Inventors
- 👤 Vincent A Rayburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:14
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/03; B29C48/05; B29C48/25; B29C48/94; B29C48/06; B29C48/30; B29C48/32; B29C48/34; B29K; B29K2021/00; Y; Y10; Y10S; Y10S425/00; Y10S425/115
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189503917A
Cited
US1370800A
Cited
US2069087A
Cited
US2307034A
Cited
US2291344A
Cited
US2519375A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |