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US2684422A
Expired / Lapsed
US
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Chain welding machine
Assignee: Meyer Roth and Pastor Maschinenfabrik GmbH
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Filing: 1951-04-17
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Granted: 1954-07-20
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Expires: 1971-04-17
Abstract
No abstract record available.
Inventors
- 👤 Esser Paul
- 👤 Stutzer Hans
- 👤 Gremm Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:51
CPC Classifications
B; B21; B21L; B21L3/00; B21L3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |