US3687731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for cleaning capillary sized holes in articles
Assignee: Sieburg Ind Inc
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Filing: 1970-05-21
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Granted: 1972-08-29
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Expires: 1990-05-21
Abstract
Abstract THE CAPILLARY OF AN ARTICLE IS CLEARED OF FOREIGN MATERIALS BY A LIQUID RAM HAVING A PRESSURE EXCEEDING 25,000 P.S.I. THE APPARATUS MAY ALSO INCLUDE A DRYING STATION UTILIZING GAS FLOW THROUGH THE CAPILLARY, AND ELEVATOR MEANS FOR SEATING THE ARTICLE IN CLEANING POSITION HAVING FORCE-LIMITING MEANS TO PREVENT DAMAGE TO THE ARTICLE.
Inventors
- 👤 Paul Stuart Citrin
- 👤 Frank Joseph Gurski Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:39
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0444; B; B23; B23K; B23K20/00; B23K20/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |