US2908201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for the perforation of paper and the like
Assignee: Produktions-Service AB
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Filing: 1956-02-06
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Granted: 1959-10-13
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Expires: 1976-02-06
Abstract
No abstract record available.
Inventors
- 👤 Hellberg Gustav Sigvard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:34
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/16; B26F1/02; B26F1/06; B26F1/10; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303752; Y10T409/303808; Y10T409/304088; Y10T409/304536; Y10T409/305208; Y10T83/00; Y10T83/081; Y10T83/083; Y10T83/465; Y10T83/4699
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |