Patent US3008601A successfully refreshed from Google Patents.
US3008601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polytetrafluoroethylene coated cooking utensils
Assignee: COLLETTE GREGOIRE
•
Filing: 1955-12-08
•
Granted: 1961-11-14
•
Expires: 1975-12-08
Abstract
No abstract record available.
Inventors
- 👤 Cahne Armand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:34
CPC Classifications
A; A47; A47J; A47J36/00; A47J36/02; B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A COOKING UTENSIL COMPRISING A METALLIC BASE OF SUBSTANTIALLY UNIFORM CROSS SECTION, HAVING A PLURALITY OF CAVITIES OF IRREGULAR WALL CONTOURS, AND A COATING OF FUSED PURE POLYTETRAFLUOROETHYLENE COVERING SUBSTANTIALLY ONLY THE INNER SURFACE OF SAID BASE AND FILLING SAID CAVITIES, AND INTERLOCKING THE COATING TO THE METAL, SAID METALLIC BASE HAVING A SUBSTANTIALLY FLAT OUTER BOTTOM SURFACE.
Claim 2
Dependent Claim
58 words
A COOKING UTENSIL COMPRISING A METALLIC BASE OF SUBSTANTIALLY UNIFORM CROSS SECTION, HAVING A PLURALITY OF CAVITIES OF IRREGULAR WALL CONTOURS, AND A COATING OF FUSED PURE POLYTETRAFLUOROETHYLENE COVERING SUBSTANTIALLY ONLY THE INNER SURFACE OF SAID BASE AND FILLING SAID CAVITIES, AND INTERLOCKING THE COATING TO THE METAL, SAID METALLIC BASE HAVING A SUBSTANTIALLY FLAT OUTER BOTTOM SURFACE.
References Cited (Backward Citations)
US492588A
Cited
US2133346A
Cited
US2303774A
Cited
US2378445A
Cited
US2606510A
Cited
US2580131A
Cited
US2567162A
Cited
US2462242A
Cited
US2510078A
Cited
US2562117A
Cited
US2542069A
Cited
GB657085A
Cited
US2604751A
Cited
US2686767A
Cited
US2731360A
Cited
US2776918A
Cited
US2691814A
Cited
US2777783A
Cited
US2944917A
Cited
US2820312A
Cited
US2850999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-13 | 1965-05-15 | 1965-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-13 | 1969-05-15 | 1969-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-13 | 1973-05-15 | 1973-11-14 | $7700.00 | Window Closed / Lapsed |