Patent US3299540A successfully refreshed from Google Patents.
US3299540A
Expired / Lapsed
US
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Household slipper
Assignee: Individual
•
Filing: 1963-05-27
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Granted: 1967-01-24
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Expires: 1983-05-27
Abstract
No abstract record available.
Inventors
- 👤 William M Scholl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:32
CPC Classifications
A; A43; A43B; A43B1/00; A43B1/14; A43B3/00; A43B3/10; A43B3/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN A HOUSEHOLD SLIPPER, A PLASTIC FOAM SOLE LAYER, A THINNER PLASTIC FOAM UPPER HAVING A KEYHOLE-SHAPED OPENING THEREIN, SAID OPENING HAVING A RELATIVELY LARGE ROUNDED REAR PORTION MERGING WITH AN ELONGATED FRONT PORTION THE SIDE EDGES OF WHICH CONVERGE FORWARDLY, A FINE-LINE HEAT SEAL JOINING SAID UPPER TO SAID HOLE LAYER AND DEFINING THE BOUNDING EDGE OF THE SLIPPER, A DECORATIVE AND REINFORCING PLASTIC FOAM PIECE AROUND SAID OPENING, A FINE-LINE HEAT SEAL SEAM JOINING THE UPPER AND INNER EDGE OF SAID PIECE AND DEFINING SAID OPENING, AND A DECORATIVE HEAT SEAL SEAM JOINING THE OUTER MARGIN OF SAID PIECE AND SAID UPPER.
Claim 2
Dependent Claim
104 words
IN A HOUSEHOLD SLIPPER, A PLASTIC FOAM SOLE LAYER, A THINNER PLASTIC FOAM UPPER HAVING A KEYHOLE-SHAPED OPENING THEREIN, SAID OPENING HAVING A RELATIVELY LARGE ROUNDED REAR PORTION MERGING WITH AN ELONGATED FRONT PORTION THE SIDE EDGES OF WHICH CONVERGE FORWARDLY, A FINE-LINE HEAT SEAL JOINING SAID UPPER TO SAID HOLE LAYER AND DEFINING THE BOUNDING EDGE OF THE SLIPPER, A DECORATIVE AND REINFORCING PLASTIC FOAM PIECE AROUND SAID OPENING, A FINE-LINE HEAT SEAL SEAM JOINING THE UPPER AND INNER EDGE OF SAID PIECE AND DEFINING SAID OPENING, AND A DECORATIVE HEAT SEAL SEAM JOINING THE OUTER MARGIN OF SAID PIECE AND SAID UPPER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |