Patent US2709456A successfully refreshed from Google Patents.
US2709456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread protectors
Assignee: WEDGE PROTECTORS Inc
•
Filing: 1950-03-07
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Granted: 1955-05-31
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Expires: 1970-03-07
Abstract
No abstract record available.
Inventors
- 👤 Foster F Hillix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:32
CPC Classifications
B; B65; B65D; B65D59/00; F; F16; F16L; F16L57/00; F16L57/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US616246A
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US786338A
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US887897A
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US907552A
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US1839448A
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US1941235A
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US2092535A
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US2378710A
Cited
US2523930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-30 | 1958-11-29 | 1959-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-30 | 1962-11-29 | 1963-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-30 | 1966-11-29 | 1967-05-31 | $7700.00 | Window Closed / Lapsed |