US2688457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gutter hanger
Assignee: Individual
•
Filing: 1949-08-19
•
Granted: 1954-09-07
•
Expires: 1969-08-19
Abstract
No abstract record available.
Inventors
- 👤 Charles A Hammarstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:53
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/04; E04D13/064; E04D13/072; E04D13/0722; E04D13/0725
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US194611A
Cited
US472294A
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US635317A
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US642668A
Cited
US672701A
Cited
US1566284A
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US1629305A
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US1997663A
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US2109556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |