Patent US2987329A successfully refreshed from Google Patents.
US2987329A
Expired / Lapsed
US
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Corrugated metal hose connections
Assignee: Packless Metal Hose Inc
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Filing: 1958-07-11
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Granted: 1961-06-06
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Expires: 1978-07-11
Abstract
No abstract record available.
Inventors
- 👤 Barton Edwin Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:06
CPC Classifications
F; F16; F16L; F16L33/00; F16L33/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US347947A
Cited
US2132326A
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US2142357A
Cited
US2250286A
Cited
US2437879A
Cited
US2678836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |