US2986089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Debris-free perforating gun
Assignee: Borg Warner Corp
•
Filing: 1956-01-09
•
Granted: 1961-05-30
•
Expires: 1976-01-09
Abstract
No abstract record available.
Inventors
- 👤 Lorrain D Meddick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:14
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/11; E21B43/116; E21B43/117
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA493862A
Cited
US2734456A
Cited
US2565789A
Cited
US2669928A
Cited
US2629325A
Cited
US2697399A
Cited
US2799224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |