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US3006136A
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Method and apparatus for controlling the tension in tapes
Assignee: Balfour Beatty PLC
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Filing: 1960-03-07
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Granted: 1961-10-31
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Expires: 1980-03-07
Abstract
No abstract record available.
Inventors
- 👤 Grieve George Thomas Wilson
- 👤 Watson Harold William Ritchie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:32
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/06; B65H23/10
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) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |