Patent US2388951A successfully refreshed from Google Patents.
Patent US2539853A successfully refreshed from Google Patents.
US2539853A
Expired / Lapsed
US
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Method and machine for making flexible tubing
Assignee: Ohio Rubber Co
•
Filing: 1947-12-08
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Granted: 1951-01-30
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Expires: 1967-12-08
Abstract
No abstract record available.
Inventors
- 👤 George L Meyers
- 👤 John E Schriner
- 👤 John C Shutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:40
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/581; B29C53/80; B29C53/82; B29C53/821; B29C53/825; B29C53/827; B29D; B29D23/00; B29D23/18; B29K; B29K2021/00; B29L; B29L2023/00; B29L2023/005; Y; Y10; Y10S; Y10S138/00; Y10S138/07
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |