Delay blasting cap
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 25, 1983
Grant Date -
N/A
app pub date -
Sep 21, 1979
filing date -
Sep 21, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A delay blasting cap having improved uniformity and predictability of delay time, and less susceptible to timing change as a result of a change in the medium or temperature surrounding the cap, has a polyolefin or polyfluorocarbon carrier capsule or tube for the delay charge, and preferably a rigid metal capsule holding the delay charge in place. Preferably, the delay carrier is a polyethylene capsule, which inhibits the priming charge from penetrating into the delay charge during the assembling of the cap.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- ETI CANADA INC.;ETI EXPLOSIVES TECHNOLOGIES INTERNATIONAL (CANADA), LTD., CARRYING ON BUSINESS IN PARTNERSHIP AS ETI EXPLOSIVES;ETI EXPLOSIVES TECHNOLOGIES INTE;ETI EXPLOSIVES TECHNOLOGIES INTERNATIONAL LTD;ETI EXPLOSIVES TECHNOLOGIES INTERNATIONAL LTD. AND ETI EXPLOSIVES TECHNOLOGIES INTERNATIONAL (CANADA), LTD. CARRYING ON BUSINESS IN PARTNERSHIP AS ETI EXPLOSIVES
International Classification(s)

- 1979 Application Filing Year
- F42B Class
- 132 Applications Filed
- 6 Patents Issued To-Date
- 4.55 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Bryan, Paul J | Hewitt, NJ | 7 | 70 |
# of filed Patents : 7 Total Citations : 70 | |||
Morse, Daniel R | Bloomingdale, NJ | 1 | 8 |
# of filed Patents : 1 Total Citations : 8 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 8 Citation Count
- F42B Class
- 0 % this patent is cited more than
- 42 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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Dec 14, 2018 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8 |
May 31, 2016 | I | Issuance | |
Jul 11, 2013 | F | Filing | |
Feb 02, 2005 | PD | Priority Date |

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