Patent US3547752A successfully refreshed from Google Patents.
US3547752A
Expired / Lapsed
US
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Sheet construction having weakened lines for bending and severing
Assignee: Janssen Products Co
•
Filing: 1967-03-24
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Granted: 1970-12-15
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Expires: 1987-03-24
Abstract
No abstract record available.
Inventors
- 👤 Alexander Patton Janssen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:00
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/10; B41J13/12; B42; B42F; B42F5/00; Y; Y10; Y10T; Y10T428/00; Y10T428/15; Y10T428/24; Y10T428/24273; Y10T428/24479; Y10T428/24612
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) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |