Patent US2980143A successfully refreshed from Google Patents.
US2980143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe clamp
Assignee: Individual
•
Filing: 1959-05-28
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Granted: 1961-04-18
•
Expires: 1979-05-28
Abstract
No abstract record available.
Inventors
- 👤 Frederick F Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:59
CPC Classifications
F; F16; F16L; F16L21/00; F16L21/002; F16L21/005; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1441
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US118868A
Cited
US396625A
Cited
US1806867A
Cited
GB189321145A
Cited
US1816197A
Cited
US2690193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |