US3104797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Langenfeld
Assignee: —
•
Filing: —
•
Granted: 1963-09-24
•
Expires: 1980-09-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:31
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/004; B31B2155/00; B31B2155/001; B31B2155/0012; B31B2160/00; B31B2160/10; B31B70/14; B31B70/26; B31B70/262; B31B70/266; B31B70/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN A BAG HAVING SUBSTANTIALLY PLANAR FRONT AND REAR FACES CONNECTED AT THEIR SIDE EDGES BY GUSSETED SIDE PANELS, AN END-SEAL COMPRISING: A CLOSURE FLAP MADE UP OF A PORTION OF THE BAG MATERIAL ADJACENT THE END TO BE SEALED AND ADAPTED TO BE FOLDED REARWARDLY ABOUT A TRANSVERSE FOLD LINE TO ENGAGE THE REAR FACE OF SAID BAG; THE REAR FACE OF SAID BAG MATERIAL IN SAID CLOSURE FLAP BEING SHORTER THAN SAID FRONT FACE TO EXPOSE A SUBSTANTIAL PORTION OF AN INTERIOR SURFACE OF SAID FRONT FACE; A PART OF THE GUSSETED SIDE PANELS NOT CONTIGUOUS WITH SAID REAR FACE OF SAID BAG MATERIAL IN SAID CLOSURE FLAP BEING CUT APPROXIMATELY THE SAME LENGTH AS AND SUBSTANTIALLY PARALLEL TO SAID REAR FACE; THE EXPOSED INTERIOR SURFACE OF SAID FACE OF THE BAG MATERIAL IN SAID CLOSURE FLAP BEING ADHESIVELY BONDED TO SAID REAR FACE OF SAID BAG.
Claim 2
Dependent Claim
149 words
IN A BAG HAVING SUBSTANTIALLY PLANAR FRONT AND REAR FACES CONNECTED AT THEIR SIDE EDGES BY GUSSETED SIDE PANELS, AN END-SEAL COMPRISING: A CLOSURE FLAP MADE UP OF A PORTION OF THE BAG MATERIAL ADJACENT THE END TO BE SEALED AND ADAPTED TO BE FOLDED REARWARDLY ABOUT A TRANSVERSE FOLD LINE TO ENGAGE THE REAR FACE OF SAID BAG; THE REAR FACE OF SAID BAG MATERIAL IN SAID CLOSURE FLAP BEING SHORTER THAN SAID FRONT FACE TO EXPOSE A SUBSTANTIAL PORTION OF AN INTERIOR SURFACE OF SAID FRONT FACE; A PART OF THE GUSSETED SIDE PANELS NOT CONTIGUOUS WITH SAID REAR FACE OF SAID BAG MATERIAL IN SAID CLOSURE FLAP BEING CUT APPROXIMATELY THE SAME LENGTH AS AND SUBSTANTIALLY PARALLEL TO SAID REAR FACE; THE EXPOSED INTERIOR SURFACE OF SAID FACE OF THE BAG MATERIAL IN SAID CLOSURE FLAP BEING ADHESIVELY BONDED TO SAID REAR FACE OF SAID BAG.
References Cited (Backward Citations)
US820071A
Cited
US1747189A
Cited
US1887680A
Cited
US1970848A
Cited
US2237327A
Cited
US2945616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |