US2794590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mailing envelope
Assignee: Individual
•
Filing: 1955-01-21
•
Granted: 1957-06-04
•
Expires: 1975-01-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Paul C Sills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:16
CPC Classifications
B; B65; B65D; B65D27/00; B65D27/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US324164A
Cited
FR451658A
Cited
GB191312332A
Cited
US1136163A
Cited
US1388947A
Cited
US1865037A
Cited
US1810649A
Cited
US1956527A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |