Patent US2356853A successfully refreshed from Google Patents.
US2356853A
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US
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Sandwich making machine
Assignee: ROBERT E MCCORMACK
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Filing: 1942-07-24
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Granted: 1944-08-29
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Expires: 1962-07-24
Abstract
No abstract record available.
Inventors
- 👤 Keller Gregory Harding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:26
CPC Classifications
B; B32; B32B; B32B37/00; B32B37/14; B32B37/24; A; A21; A21C; A21C15/00; A21C15/002; A21C15/02; B26; B26D; B26D7/00; B26D7/27; B26D7/34; Y; Y10; Y10S; Y10S411/00; Y10S411/918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-08-29 | 1948-02-28 | 1948-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-08-29 | 1952-02-28 | 1952-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-08-29 | 1956-02-28 | 1956-08-29 | $7700.00 | Window Closed / Lapsed |