US2639680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling for joining lengths of trough gutters
Assignee: Individual
•
Filing: 1949-06-18
•
Granted: 1953-05-26
•
Expires: 1969-06-18
Abstract
No abstract record available.
Inventors
- 👤 Jr James D Tennison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:24
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/04; E04D13/064; E04D13/068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US168934A
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US173037A
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US180416A
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US326647A
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US468298A
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US497466A
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US1087325A
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US1126854A
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US1301565A
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US1460733A
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US1682840A
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US2360159A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |