Patent US2880741A successfully refreshed from Google Patents.
US2880741A
Expired / Lapsed
US
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Collapsible portable hangar
Assignee: Individual
•
Filing: 1956-09-17
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Granted: 1959-04-07
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Expires: 1976-09-17
Abstract
No abstract record available.
Inventors
- 👤 Mcgrand John Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:14
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/32; E04H15/34; E04H15/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US302535A
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US2511974A
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US1493915A
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US1528629A
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US2134879A
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US2186535A
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US2440557A
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US2516869A
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US2520055A
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US2646057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |