Patent US2444988A successfully refreshed from Google Patents.
US2444988A
Expired / Lapsed
US
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Safety device for flexible tubing
Assignee: PACKLESS METAL PRODUCTS Corp
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Filing: 1943-10-14
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Granted: 1948-07-13
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Expires: 1963-10-14
Abstract
No abstract record available.
Inventors
- 👤 Guarnaschelli Stephen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:19
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/10; F16L27/107; F16L27/11; F16L27/111; F16L11/00; F16L11/04; F16L11/11; F16L11/115
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US29113A
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US387956A
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US401706A
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FR357023A
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US983913A
Cited
GB191406521A
Cited
US1809874A
Cited
US1845061A
Cited
US1853681A
Cited
US2300547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-13 | 1952-01-12 | 1952-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-13 | 1956-01-12 | 1956-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-13 | 1960-01-12 | 1960-07-13 | $7700.00 | Window Closed / Lapsed |