US3331439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple cutting tool
Assignee: Individual
•
Filing: 1964-08-14
•
Granted: 1967-07-18
•
Expires: 1984-08-14
Abstract
No abstract record available.
Inventors
- 👤 Sanford Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:29
CPC Classifications
E; E21; E21B; E21B29/00; E21B29/002; E21B29/005
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A CUTTING TOOL USE IN WELL BORES COMPRISING, A BODY, A CUTTER BLADE ASSEMBLY, ACTUATING MEANS, MEANS PIVOTALLY SECURING SAID CUTTER BLADE ASSEMBLY TO SAID BODY, MEANS CONNECTING SAID ACTUATING MEANS TO SAID CUTTER BLADE ASSEMBLY WHEREBY SAID CUTTER BLADE ASSEMBLY MAY BE PIVOTED WITH RESPECT TO SAID BODY, AN UPPER RING SECURED TO SAID BODY ABOVE SAID CUTTER BLADE ASSEMBLY, A LOWER RING SECURED TO SAID BODY BELOW SAID CUTTER BLADE ASSEMBLY, AND AT LEAST TWO STABLILZER PADS EXTENDING FROM SAID UPPER RING TO SAID LOWER RING, SAID RINGS AND PADS CENTERING SAID CUTTING TOOL WITHIN A WELL STRING.
References Cited (Backward Citations)
US598805A
Cited
US1686403A
Cited
US1993182A
Cited
US2275946A
Cited
US2309225A
Cited
US2482674A
Cited
US2663546A
Cited
US2709490A
Cited
US2899000A
Cited
US3050122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |