US3455017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for welding together tubular construction parts and tubular construction parts so welded
Assignee: HORST H LEMET CHROMIUM VAN DER
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Filing: 1968-01-25
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Granted: 1969-07-15
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Expires: 1988-01-25
Abstract
No abstract record available.
Inventors
- 👤 Nicolaas Zondag
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:57
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/04; B21D39/042; B21D26/00; B21D26/02; B21D26/06; B21D26/08; B23; B23K; B23K20/00; B23K20/06; B23K20/08; B23K20/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3229364A
Cited
US3258841A
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US3261088A
Cited
US3292253A
Cited
US3313021A
Cited
US3263323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |