Patent US3394737A successfully refreshed from Google Patents.
US3394737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible tubing
Assignee: Owens Corning
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Filing: 1965-11-10
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Granted: 1968-07-30
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Expires: 1985-11-10
Abstract
No abstract record available.
Inventors
- 👤 Barney G Hoffmann
- 👤 Jr Charles H Will
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:12
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; B29D23/003; B29D23/006; F; F16; F16L; F16L11/00; F16L11/02; F16L59/00; F16L59/04; F16L59/14; F16L59/153; B29K; B29K2021/00; B29K2105/00; B29K2105/06; B29L; B29L2023/00; B29L2023/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |