US2704031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Borehole explosive charge retainer
Assignee: FRANCES ANDREWS TAYLOR
•
Filing: 1951-03-26
•
Granted: 1955-03-15
•
Expires: 1971-03-26
Abstract
No abstract record available.
Inventors
- 👤 Clifford A Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:41
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/02; F42D; F42D1/00; F42D1/08; F42D1/22; Y; Y10; Y10T; Y10T24/00; Y10T24/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US156673A
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US955430A
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US1560815A
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US1610012A
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US1863016A
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US2036172A
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US2187007A
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US2529763A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-14 | 1958-09-13 | 1959-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-14 | 1962-09-13 | 1963-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-14 | 1966-09-13 | 1967-03-15 | $7700.00 | Window Closed / Lapsed |