US3509799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag-forming method
Assignee: Fort James Corp
•
Filing: 1967-08-04
•
Granted: 1970-05-05
•
Expires: 1987-08-04
Abstract
No abstract record available.
Inventors
- 👤 Rudolf R Weis
- 👤 Ellsworth A Hartbauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:32
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C65/305; B29C53/00; B29C53/02; B29C53/10; B29C65/74; B29C65/743; B29C65/7435; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/347; B29C66/3472; B29C66/348; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/50; B29C66/63; B29C66/632; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81421; B29C66/81422; B29C66/8145; B29C66/81463; B29C66/818; B29C66/8181; B29C66/81811; B29C66/8187; B29C66/81871; B29C66/82; B29C66/822; B29C66/8221; B29C66/8226; B29C66/8227; B29C66/824; B29C66/8242; B29C66/83; B29C66/834; B29C66/8341; B29C66/83431; B29C66/83433; B29C66/83435; B29C66/8351; B29C66/83511; B29C66/84; B29C66/843; B29C66/8432; B29C66/90; B29C66/91; B29C66/912; B29C66/9121; B29C66/91211; B29C66/91212; B29C66/91231; B29C66/914; B29C66/9141; B29C66/91421; B29C66/91431; B29C66/9161; B29C66/91641; B29C66/91643; B29C66/91645; B31; B31B; B31B70/00; B29C2793/00; B29C2793/0045; B29C53/36; B29C53/38; B29C53/385; B29C66/003; B29C66/432; B29C66/4322; B29C66/70; B29C66/71; B29C66/816; B29C66/8167; B29C66/83421; B29C66/96; B29C66/961; B29L; B29L2031/00; B29L2031/712; B29L2031/7128; B31B2150/00; B31B2150/002; B31B2155/00; B31B2160/00; B31B2160/10; B31B70/02; B31B70/022; B31B70/024; B31B70/14; B31B70/16; B31B70/18; B31B70/74; B31B70/92; B31B70/94; B31B70/946
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |