Patent US2768740A successfully refreshed from Google Patents.
US2768740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reel engageable device for retaining a metallic tape in tightly wound position therein and for covering the otherwise exposed surface thereof
Assignee: Individual
•
Filing: 1955-04-13
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Granted: 1956-10-30
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Expires: 1975-04-13
Abstract
No abstract record available.
Inventors
- 👤 James N Cranwill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:37
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/037; G11B15/00; G11B15/60; G11B15/66; G11B15/67; G11B15/674
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US211604A
Cited
US331616A
Cited
US564070A
Cited
US901069A
Cited
US1297606A
Cited
US1497236A
Cited
US2038910A
Cited
US2128710A
Cited
US2246984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |