Patent US3448666A successfully refreshed from Google Patents.
US3448666A
Expired / Lapsed
US
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Cross-bottom sack and apparatus for manufacturing same
Assignee: Windmoeller and Hoelscher KG
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Filing: 1966-10-10
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Granted: 1969-06-10
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Expires: 1986-10-10
Abstract
No abstract record available.
Inventors
- 👤 Hermann Kappelhoff
- 👤 Max Georg Gunnerich
- 👤 Walter Paul
- 👤 Walter Steinbeck
- 👤 Willy Niemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:11
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/08; B31; B31B; B31B2150/00; B31B2150/001; B31B2150/0014; B31B2160/00; B31B2160/20; B31B70/00; B31B70/60; B31B70/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
IN AN APPARATUS FOR MANUFACTURING SACKS FROM TUBE LENGTHS AND INCLUDING A BOTTOM MAKING MACHINE, THE IMPROVEMNT COMPRISNG MEANS TO APPLY ADHESIVE TO SAID TUBE LENGTHS, AND MEANS TO DRY THE APPLIED ADHESIVE, BOTH OF SAID MEANS PRECEDING SAID BOTTOM MAKING MACHINE IN THE DIRECTION OF TRAVEL OF THE TUBE LENGTHS..
Claim 2
Dependent Claim
51 words
IN AN APPARATUS FOR MANUFACTURING SACKS FROM TUBE LENGTHS AND INCLUDING A BOTTOM MAKING MACHINE, THE IMPROVEMNT COMPRISNG MEANS TO APPLY ADHESIVE TO SAID TUBE LENGTHS, AND MEANS TO DRY THE APPLIED ADHESIVE, BOTH OF SAID MEANS PRECEDING SAID BOTTOM MAKING MACHINE IN THE DIRECTION OF TRAVEL OF THE TUBE LENGTHS..
References Cited (Backward Citations)
US3043199A
Cited
US3272093A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |