Patent US2998985A successfully refreshed from Google Patents.
US2998985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Short radius, fibre, pipe bend
Assignee: McGraw Edison Co
•
Filing: 1958-05-02
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Granted: 1961-09-05
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Expires: 1978-05-02
Abstract
No abstract record available.
Inventors
- 👤 Fredrick B Burns
- 👤 Edward M Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:34
CPC Classifications
F; F16; F16L; F16L43/00; F16L43/008; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49838; Y10T29/49863; Y10T29/4987
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US540584A
Cited
US1877628A
Cited
US1880053A
Cited
US2057916A
Cited
US2327347A
Cited
US2465257A
Cited
US2706497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |