Patent US3389532A successfully refreshed from Google Patents.
US3389532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging system
Assignee: PETER ECKRICH AND SONS Inc
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Filing: 1964-05-07
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Granted: 1968-06-25
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Expires: 1984-05-07
Abstract
No abstract record available.
Inventors
- 👤 James S Stelzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:16
CPC Classifications
B; B65; B65B; B65B11/00; B65B11/48
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
171 words
A DEVICE FOR FOLDING OPPOSING ENVELOPE EDGES BENEATH THE ENVELOPE ALONG DESIRED FOLD LINES, WHICH DEVICE COMPRISES MEANS DEFINING A FOLDED ZONE, MEANS DEFINING A CREASING ZONE, CONVEYOR MEANS FOR CONVEYING AN ENVELOPE THROUGH SAID FOLDING AND CREASING ZONES, FIRST SUPPORTING MEANS IN SAID FOLDING ZONE OF A WIDTH FOR SUPPORTING ONLY THE PORTION OF THE ENVELOPE BETWEEN THE DESIRED FOLD LINES, FIRST FOLDING MEANS COOPERATING WITH SAID FIRST SUPPORTING MEANS FOR FOLDING PORTIONS OF THE ENVELOPE EXTENDING LATERALLY BEYOND SAID FIRST SUPPORTING MEANS AS FLAPS, SECOND SUPPORTING MEANS IN THE FORM OF A PLATE MEMBER HAVING A WIDTH GENERALLY THE SAME AS THE WIDTH OF SAID FIRST SUPPORTING MEMBER, SECOND FOLDING MEANS COOPERATING WITH SAID SECOND SUPPORTING MEANS FOR FOLDING SAID FLAPS BENEATH SAID PLATE NUMBER WITH THE ENVELOPE DISPOSED ON SAID PLATE MEMBER, THIRD SUPPORTING MEANS FOR SUPPORTING THE ENVELOPE WITH THE FLAPS FOLDED BENEATH THE ENVELOPE AGAINST THE BOTTOM OF THE ENVELOPE, MEANS COOPERATING WITH SAID THIRD SUPPORTING MEANS FOR CREASING THE RESULTING FOLDS OF THE FLAPS ALONG
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) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |