US3259003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming openings in tubular members
Assignee: American Radiator and Standard Sanitary Corp
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Filing: 1964-06-26
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Granted: 1966-07-05
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Expires: 1984-06-26
Abstract
No abstract record available.
Inventors
- 👤 James R Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:12
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; B21D28/28; B21D28/285; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49348; Y10T29/49995; Y10T29/53; Y10T29/53113; Y10T29/53122; Y10T83/00; Y10T83/04; Y10T83/0596; Y10T83/384; Y10T83/395; Y10T83/398
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
111 words
A MEANS FOR FORMING A PLURALITY OF PORT OPENINGS THROUGH A WALL PORTION OF AN ELONGATED PREFORMED TUBULAR MEMBER COMPRISING, (A) AN ELONGATED TOOL BASE ADAPTED TO BE FITTED INTO THE BORE OF SAID TUBULAR MEMBER TO PROHIBIT THE DISTORTION OF SAID TUBULAR MEMBER, (B) SAID TOOL BASE HAVING AN EXTERNAL CONTOUR CLOSELY CONFORMING TO A CIRCUMFERENTIAL PORTION OF THE INTERNAL WALL SURFACE OF SAID TUBULAR MEMBER TO BRACE THE SAME, (C) AND SID TOOL BASE HAVING A LONGITUDINALLY EXTENDING CHANNELWAY FORMED THEREIN OPENING TO THE UNBRACED CIRCUMFERENTIAL WALL PORTION OF SAID TUBULAR MEMBER, (D) A CUTTING TOOL INCLUDING A PLURALITY OF LONGITUDINALLY SPACED CUTTERS ADAPTED TO BE DISPOSED IN THE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |