Patent US20548A successfully refreshed from Google Patents.
US3102829A
Expired / Lapsed
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Injection device
Assignee: Electric Auto Lite Co
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Filing: 1961-04-21
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Granted: 1963-09-03
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Expires: 1981-04-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Sherrill S Rathbun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:48
CPC Classifications
E; E04; E04G; E04G23/00; E04G23/02; E04G23/0203; E04G23/0211
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A DEVICE FOR INJECTING A RESIN INTO A CRACK IN A FLAT SURFACE COMPRISING IN COMBINATION: (A) A FIRST CHAMBER HAVING A GASKET AROUND THE MARGINAL EDGES THEREOF; (B) MEANS FOR DRAWING A VACUUM IN SAID FIRST CHAMBER WHEREBY SAID CHAMBER CAN BE HELD BY EXTERNAL AIR PRESSURE AGAINST A FLAT SURFACE; (C) A SECOND CHAMBER HAVING A GASKET AROUND THE MARGINAL EDGES THEREOF; (D) MEANS FOR INJECTING A RESIN INTO SAID SECOND CHAMBER; (E) MEANS FOR EXTENDING BETWEEN SAID FIRST AND SECOND CHAMBERS WHEREBY SAID CHAMBERS ARE HELD IN SIDE-BYSIDE RELATIONSHHIP WITH THE GASKETS THEREOF FORMING A COMMON PLANE; AND (F) THE AREA DEFINED BY THE GASKET OF THE FIRST CHAMBER BEING SUBSTANTIALLY LARGER THAN THE AREA DEFINED BY THE GASKET OF THE SECOND CHAMBER.
Claim 2
Independent Claim
126 words
A DEVICE FOR INJECTING A RESIN INTO A CRACK IN A FLAT SURFACE COMPRISING IN COMBINATION: (A) A FIRST CHAMBER HAVING A GASKET AROUND THE MARGINAL EDGES THEREOF; (B) MEANS FOR DRAWING A VACUUM IN SAID FIRST CHAMBER WHEREBY SAID CHAMBER CAN BE HELD BY EXTERNAL AIR PRESSURE AGAINST A FLAT SURFACE; (C) A SECOND CHAMBER HAVING A GASKET AROUND THE MARGINAL EDGES THEREOF; (D) MEANS FOR INJECTING A RESIN INTO SAID SECOND CHAMBER; (E) MEANS FOR EXTENDING BETWEEN SAID FIRST AND SECOND CHAMBERS WHEREBY SAID CHAMBERS ARE HELD IN SIDE-BYSIDE RELATIONSHHIP WITH THE GASKETS THEREOF FORMING A COMMON PLANE; AND (F) THE AREA DEFINED BY THE GASKET OF THE FIRST CHAMBER BEING SUBSTANTIALLY LARGER THAN THE AREA DEFINED BY THE GASKET OF THE SECOND CHAMBER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |