US3082690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blasting method and apparatus
Assignee: Union Carbide Corp
•
Filing: 1958-03-28
•
Granted: 1963-03-26
•
Expires: 1978-03-28
Abstract
No abstract record available.
Inventors
- 👤 Martin M Reynolds
- 👤 Christian F Gottzmann
- 👤 Odd A Hansen
- 👤 James A Proctor
- 👤 Peter M Riede
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:16
CPC Classifications
F; F42; F42D; F42D1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A METHOD FOR BLASTING MATERIAL IN WHICH A CLOSED CARTRIDGE HAVING PRESSURE RELEASE MEANS IS INSERTED IN A DRILL HOLE IN SAID MATERIAL, COMPRISING THE STEPS OF PRO-
Claim 2
Independent Claim
28 words
A METHOD FOR BLASTING MATERIAL IN WHICH A CLOSED CARTRIDGE HAVING PRESSURE RELEASE MEANS IS INSERTED IN A DRILL HOLE IN SAID MATERIAL, COMPRISING THE STEPS OF PRO-
References Cited (Backward Citations)
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US2058099A
Cited
US2098529A
Cited
US2552518A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |