Patent US3318283A successfully refreshed from Google Patents.
US3318283A
Expired / Lapsed
US
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Cake circle
Assignee: Kirkhof Manufacturing Corp
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Filing: 1965-03-04
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Granted: 1967-05-09
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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 13:26
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.
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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) | 1970-05-08 | 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 |