US2955534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blasting methods and materials
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1956-05-17
•
Granted: 1960-10-11
•
Expires: 1976-05-17
Abstract
No abstract record available.
Inventors
- 👤 Lambert James Edward
- 👤 Lewis Idwal Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:02
CPC Classifications
F; F42; F42D; F42D1/00; F42D1/08; F42D1/10; Y; Y10; Y10S; Y10S102/00; Y10S102/705
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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DE44422C
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US2836484A
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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) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |