US3527261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube guide apparatus
Assignee: Babcock and Wilcox Co
•
Filing: 1968-11-12
•
Granted: 1970-09-08
•
Expires: 1988-11-12
Abstract
No abstract record available.
Inventors
- 👤 Bernhard Bigler
- 👤 Jules L Louvet-Dronet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:50
CPC Classifications
F; F22; F22B; F22B21/00; F22B21/02; F22B21/04; F22B21/08; F22B21/081; F28; F28F; F28F9/00; F28F9/007; F28F9/013; F28F9/0132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2884911A
Cited
US3163155A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |