US3534489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination pocket calendar and permanent file
Assignee: SDBN Inc A CORP OF MINNESOTA
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Filing: 1969-01-09
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Granted: 1970-10-20
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Expires: 1989-01-09
Abstract
No abstract record available.
Inventors
- 👤 Raoul W Diambra
- 👤 Lloyd A Klofanda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:00
CPC Classifications
B; B42; B42F; B42F7/00; B42F7/04; B42D; B42D5/00; B42D5/04; B42D5/043; Y; Y10; Y10S; Y10S493/00; Y10S493/916; Y10S493/931
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) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |