Patent US2935807A successfully refreshed from Google Patents.
US2935807A
Expired / Lapsed
US
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Display mount sheet for greeting cards
Assignee: GIBSON ART Co
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Filing: 1957-09-03
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Granted: 1960-05-10
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Expires: 1977-09-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Elmer D Townsend
- 👤 Richard A Hoffmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:37
CPC Classifications
B; B42; B42F; B42F9/00; A; A47; A47G; A47G1/00; A47G1/06; A47G1/0633; G; G09; G09F; G09F5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US236244A
Cited
US1477131A
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US1435762A
Cited
US1972012A
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US2532132A
Cited
US2677910A
Cited
US2748017A
Cited
US2768460A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |