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US3535804A
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Page edge-reinforcing index tabs and method of applying same
Assignee: Superior Tabbies Inc
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Filing: 1968-10-08
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Granted: 1970-10-27
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Expires: 1988-10-08
Abstract
No abstract record available.
Inventors
- 👤 Walter F Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:15
CPC Classifications
B; B42; B42F; B42F19/00; B42F21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1151475A
Cited
US1551021A
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US2649796A
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US3054202A
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US3140883A
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US3324823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |