Patent US3534478A successfully refreshed from Google Patents.
US3534478A
Expired / Lapsed
US
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Extensible steel tape rules
Assignee: Fisco Tools Ltd
•
Filing: 1968-12-11
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Granted: 1970-10-20
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Expires: 1988-12-11
Abstract
No abstract record available.
Inventors
- 👤 Leo Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:25
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/002; G01B3/10; G01B3/1041; G01B3/1046; G01B3/1061; G01B2003/1064
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |