US3519220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape measure construction incorporating a spring maintained tape hook bumper
Assignee: Cooper Industries LLC
•
Filing: 1968-08-22
•
Granted: 1970-07-07
•
Expires: 1988-08-22
Abstract
No abstract record available.
Inventors
- 👤 Charles Zelinick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:50
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/10; G01B3/1005; G01B3/102; G01B3/1041; G01B2003/1053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA739657A
Cited
US1975419A
Cited
US2616635A
Cited
US2599320A
Cited
US3041004A
Cited
US3042338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |