Patent US2800944A successfully refreshed from Google Patents.
US2800944A
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Method and machine for winding a plurality of narrow width fins severed from a ribbon of predetermined width, about a tube
Assignee: Carrier Corp
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Filing: 1955-03-31
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Granted: 1957-07-30
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Expires: 1975-03-31
Abstract
No abstract record available.
Inventors
- 👤 Carl J Schmeling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:20
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/22; B21C37/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378; Y10T29/49382; Y10T29/49826; Y10T29/49881; Y10T29/51; Y10T29/5102; Y10T29/5103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189711078A
Cited
US1143211A
Cited
AT77104B
Cited
US2314611A
Cited
US2416865A
Cited
US2661525A
Cited
US2696882A
Cited
US2713375A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |