US3318283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cake circle
Assignee: Kirkhof Manufacturing Corp
•
Filing: 1965-03-04
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Granted: 1967-05-09
•
Expires: 1985-03-04
Abstract
No abstract record available.
Inventors
- 👤 James A Maclam
- 👤 Robert E O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:28
CPC Classifications
A; A21; A21B; A21B3/00; A21B3/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A CAKE CIRCLE COMPRISING: A POLYMERIC DISK HAVING A CAKE RECEIVING SURFACE, AND A PLURALITY OF CONCENTRIC STRENGTHENING RIBS DEPRESSED THEREINTO TO COOPERATIVELY FORM AN UNDERLYING SUPPORT SURFACE; SAID RIBS BEING SPACED TO FORM ANNULAR FINGER-RECEIVING TRACK MEANS THEREBETWEEN ON THE DISK UNDERSIDE; AND A PLURALITY OF SPACED, PROJECTING, FINGER-DRIVE AND INDEXING COGS IN SAID TRACK BETWEEN SAID RIBS.
Claim 2
Dependent Claim
59 words
A CAKE CIRCLE COMPRISING: A POLYMERIC DISK HAVING A CAKE RECEIVING SURFACE, AND A PLURALITY OF CONCENTRIC STRENGTHENING RIBS DEPRESSED THEREINTO TO COOPERATIVELY FORM AN UNDERLYING SUPPORT SURFACE; SAID RIBS BEING SPACED TO FORM ANNULAR FINGER-RECEIVING TRACK MEANS THEREBETWEEN ON THE DISK UNDERSIDE; AND A PLURALITY OF SPACED, PROJECTING, FINGER-DRIVE AND INDEXING COGS IN SAID TRACK BETWEEN SAID RIBS.
References Cited (Backward Citations)
US126253A
Cited
US424028A
Cited
GB191611A
Cited
US2589967A
Cited
US2792583A
Cited
US2784577A
Cited
US2878932A
Cited
US3074206A
Cited
US3229810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |