US2900665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means and method for making tubes from a thermoplastic material
Assignee: Individual
•
Filing: 1957-10-14
•
Granted: 1959-08-25
•
Expires: 1977-10-14
Abstract
No abstract record available.
Inventors
- 👤 James H Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:28
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/20; B29B; B29B13/00; B29B13/02; B29B13/023; B29B13/024; B29C; B29C57/00; B29C57/10; B29L; B29L2023/00; B29L2023/20; B29L2023/22; Y; Y10; Y10S; Y10S264/00; Y10S264/41; Y10S264/65
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2233175A
Cited
US2309561A
Cited
US2429960A
Cited
US2626430A
Cited
US2695423A
Cited
GB752221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |