Patent US3357193A successfully refreshed from Google Patents.
US3357193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temporary closure device for blasting holes and the like
Assignee: VIBRATION MEASUREMENT ENGINEERS
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Filing: 1966-02-04
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Granted: 1967-12-12
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Expires: 1986-02-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Daniel F Fitzgibbon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:52
CPC Classifications
F; F42; F42D; F42D1/00; F42D1/08; F42D1/18; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T29/00; Y10T29/49; Y10T29/49826
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A METHOD OF CLOSING A BLASTING HOLE OR THE LIKE WHICH COMPRISES: INSERTING INTO THE HOLE AN ELONGATED INFLATABLE CONTAINER OF A NORMAL DIAMETER SMALLER THAN THE HOLE SO AS TO FIT FREELY INTO THE HOLE, MAINTAINING AN END PORTION OF THE CONTAINER PROJECTING OUTWARDLY FROM THE HOLE INFLATING THE CONTAINER AND THEREBY DISTENDING IT INTO TIGHT ENGAGEMENT WITH THE SURROUNDING WALL DEFINING THE HOLE, AND LASTING SAID PROJECTING END PORTION OF THE CONTAINER AGAINST ACCIDENTAL DROPPING OF THE CONTAINER INTO THE HOLE.
Claim 2
Independent Claim
83 words
A METHOD OF CLOSING A BLASTING HOLE OR THE LIKE WHICH COMPRISES: INSERTING INTO THE HOLE AN ELONGATED INFLATABLE CONTAINER OF A NORMAL DIAMETER SMALLER THAN THE HOLE SO AS TO FIT FREELY INTO THE HOLE, MAINTAINING AN END PORTION OF THE CONTAINER PROJECTING OUTWARDLY FROM THE HOLE INFLATING THE CONTAINER AND THEREBY DISTENDING IT INTO TIGHT ENGAGEMENT WITH THE SURROUNDING WALL DEFINING THE HOLE, AND LASTING SAID PROJECTING END PORTION OF THE CONTAINER AGAINST ACCIDENTAL DROPPING OF THE CONTAINER INTO THE HOLE.
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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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |