US3534199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
In-place tube welding torch
Assignee: Boeing Co
•
Filing: 1968-11-12
•
Granted: 1970-10-13
•
Expires: 1988-11-12
Abstract
No abstract record available.
Inventors
- 👤 James C Downey
- 👤 Karl H Herrmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:30
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/028; B23K9/0282
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2906851A
Cited
US3179781A
Cited
US3194936A
Cited
US3230340A
Cited
US3275795A
Cited
US3395262A
Cited
US3238347A
Cited
US3401251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |