Patent US3545873A successfully refreshed from Google Patents.
US3545873A
Expired / Lapsed
US
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Butter storing and spreading package
Assignee: ASAD F ISAF
•
Filing: 1968-10-25
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Granted: 1970-12-08
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Expires: 1988-10-25
Abstract
No abstract record available.
Inventors
- 👤 Asad F Isaf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:09
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/28; B65D75/30; B65D75/32; B65D75/36; B65D75/366; B65D75/52; B65D75/58; B65D75/66; B65D75/68; B65D2207/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191506160A
Cited
DE473351C
Cited
US2283988A
Cited
US3064301A
Cited
US3061084A
Cited
US3332429A
Cited
US3382970A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |