Patent US2867156A successfully refreshed from Google Patents.
US2867156A
Expired / Lapsed
US
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Apparatus for making plastic bags
Assignee: Individual
•
Filing: 1956-07-18
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Granted: 1959-01-06
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Expires: 1976-07-18
Abstract
No abstract record available.
Inventors
- 👤 Robert J Burg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:49
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/14; B31B70/16; B31B70/18; B31B2155/00; B31B2155/003; B31B2160/00; B31B2160/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US255204A
Cited
US1975121A
Cited
US2192527A
Cited
US2185647A
Cited
US2474035A
Cited
US2737859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |