Patent US2686356A successfully refreshed from Google Patents.
US2686356A
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US
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Device for mechanically loading exact numbers of metal fins or laminations on tubes or rods
Assignee: NAT HEATING PRODUCTS SALES Ltd
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Filing: 1950-04-20
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Granted: 1954-08-17
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Expires: 1970-04-20
Abstract
No abstract record available.
Inventors
- 👤 Wolosianski Aleksander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:48
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/08; B21D53/085; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53026; Y10T29/5303; Y10T29/53039; Y10T29/53061; Y10T29/53078; Y10T29/53113
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1193787A
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US1426759A
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US1599792A
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US1588174A
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US1657101A
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US1735609A
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US1818593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |