Patent US3449256A successfully refreshed from Google Patents.
Patent US3552041A successfully refreshed from Google Patents.
US3552041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross-linked rand insole and shoe
Assignee: Batchelder Rubico Inc
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Filing: 1969-11-06
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Granted: 1971-01-05
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Expires: 1989-11-06
Abstract
Abstract A CROSS-LINKED RAND INSOLE AND SHOE INCORPORATING THE SAME. THE CROSS-LINKED RAND INSOLE COMPRISING A PERIPHERAL RAND PORTION AND A CENTRAL, CORE PORTION WHICH ARE INTERCONNECTED BY A PLURALITY OF FRANGIBLE LINKS. AFTER LASTING THE UPPER AND ITS COMPONENTS TO THE RAND PORTION OF THE INSOLE, THE CORE PORTION IS REMOVED BY BREAKING THE FRANGIBLE LINKS. THEREAFER, CONVENTIONAL SHOEMAKING OPERATIONS ARE PERFORMED ON THE LASTED UPPER TO PRODUCE A FINISHED SHOE.
Inventors
- 👤 Charles F Batchelder
- 👤 Jerome A Rubico
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:04
CPC Classifications
A; A43; A43B; A43B9/00; A43B9/12; A43B13/00; A43B13/38; A43B15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |