US2970798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laboratory clamps
Assignee: Central Scientific Co
•
Filing: 1956-10-23
•
Granted: 1961-02-07
•
Expires: 1976-10-23
Abstract
No abstract record available.
Inventors
- 👤 Frank P Friotchle
- 👤 Manning S Reynolds
- 👤 Earl K Takata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:29
CPC Classifications
B; B01; B01L; B01L9/00; B01L9/50; F; F16; F16B; F16B2/00; F16B2/02; F16B2/06; F16B2/065; F16B2/10; F16B7/00; F16B7/04; F16B7/0433; F16B7/044; F16B7/048; F16B7/0486; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/3439; Y10T403/00; Y10T403/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US790377A
Cited
US1025519A
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US1064920A
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US1486158A
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US1782196A
Cited
DE604997C
Cited
US2269790A
Cited
US2483152A
Cited
GB686929A
Cited
US2763774A
Cited
US2756789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |