US3332097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Footwear and method of its manufacture
Assignee: Ro Search Inc
•
Filing: 1964-09-04
•
Granted: 1967-07-25
•
Expires: 1984-09-04
Abstract
No abstract record available.
Inventors
- 👤 Ernest E Rollman
- 👤 George M Milner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:25
CPC Classifications
B; B29; B29D; B29D35/00; B29D35/06; B29D35/08; A; A43; A43B; A43B1/00; A43B1/0027; A43B13/00; A43B13/28; A43B13/32; B29K; B29K2021/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
METHOD OF MANUFACTURING WELTLESS FOOTWEAR COMPRISING FORMING A SEALING ABUTMENT AT THE BOTTOM MARGIN OF THE UPPER BY A ROW OF STITCHING WITH AN EXTENSION OF THE UPPER BEYOND SAID ROW OF STITCHING, PLACING THE UPPER ON THE LAST OF A SHOE MOLD HAVING A SIDE FRAME, TEMPORARILY HOLDING UNDER TENSION THE SEALING ABUTMENT AT THE BOTTOM OF THE LAST, POSITIONING THE SIDE FRAME OF THE SHOE MOLD ADJACENT TO THE SEALING ABUTMENT, RELEASING TENSION ON THE SEALING ABUTMENT TO PERMIT IT TO MOVE OUTWARDLY INTO SEALING ENGAGEMENT WITH THE SIDE FRAME WITH SAID EXTENSION AND AT LEAST A PORTION OF SAID ABUTMENT WITHIN THE CONFINES OF THE SOLE FACE OF THE LAST AND THE SIDE WALLS OF THE MOLD, APPLYING PRESSURE ON ELASTOMERIC MATERIAL PLACED WITHIN THE MOLD TO FORCE THE SEALING ABUTMENT INTO TIGHTER SEALING ENGAGEMENT WITH THE SIDE FRAME AND BONDING THE BOTTOM MARGIN OF THE UPPER AND SAID EXTENSION TO THE ELASTOMERIC MATERIAL.
Claim 2
Dependent Claim
157 words
METHOD OF MANUFACTURING WELTLESS FOOTWEAR COMPRISING FORMING A SEALING ABUTMENT AT THE BOTTOM MARGIN OF THE UPPER BY A ROW OF STITCHING WITH AN EXTENSION OF THE UPPER BEYOND SAID ROW OF STITCHING, PLACING THE UPPER ON THE LAST OF A SHOE MOLD HAVING A SIDE FRAME, TEMPORARILY HOLDING UNDER TENSION THE SEALING ABUTMENT AT THE BOTTOM OF THE LAST, POSITIONING THE SIDE FRAME OF THE SHOE MOLD ADJACENT TO THE SEALING ABUTMENT, RELEASING TENSION ON THE SEALING ABUTMENT TO PERMIT IT TO MOVE OUTWARDLY INTO SEALING ENGAGEMENT WITH THE SIDE FRAME WITH SAID EXTENSION AND AT LEAST A PORTION OF SAID ABUTMENT WITHIN THE CONFINES OF THE SOLE FACE OF THE LAST AND THE SIDE WALLS OF THE MOLD, APPLYING PRESSURE ON ELASTOMERIC MATERIAL PLACED WITHIN THE MOLD TO FORCE THE SEALING ABUTMENT INTO TIGHTER SEALING ENGAGEMENT WITH THE SIDE FRAME AND BONDING THE BOTTOM MARGIN OF THE UPPER AND SAID EXTENSION TO THE ELASTOMERIC MATERIAL.
References Cited (Backward Citations)
CA600085A
Cited
US1497852A
Cited
DE828073C
Cited
GB744149A
Cited
US2789295A
Cited
US2996814A
Cited
US3047890A
Cited
US3061949A
Cited
FR1325866A
Cited
US3175308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |