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Patent US2829234A successfully refreshed from Google Patents.
US2829234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slagforming body for use in butt-welding
Assignee: US Philips Corp
•
Filing: 1954-07-22
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Granted: 1958-04-01
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Expires: 1974-07-22
Abstract
No abstract record available.
Inventors
- 👤 Blink Willem Pieter Van Den
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:41
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/20; B23K9/207; B23K9/208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22108E
Cited
US2416204A
Cited
US2459957A
Cited
US2493283A
Cited
US2509999A
Cited
US2510000A
Cited
GB649177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |