US3311227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitized stamp set
Assignee: Individual
•
Filing: 1966-02-01
•
Granted: 1967-03-28
•
Expires: 1986-02-01
Abstract
No abstract record available.
Inventors
- 👤 Paul A David
- 👤 Herman L Lenz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:22
CPC Classifications
B; B41; B41K; B41K1/00; B41K1/36; B41K1/58; B41K1/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US830188A
Cited
US1237538A
Cited
US1516960A
Cited
US1506985A
Cited
US2887780A
Cited
US2919645A
Cited
US3167180A
Cited
US3227079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |