US3081545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drafting instrument
Assignee: Individual
•
Filing: 1960-02-23
•
Granted: 1963-03-19
•
Expires: 1980-02-23
Abstract
No abstract record available.
Inventors
- 👤 Robert T Bergman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:19
CPC Classifications
B; B43; B43L; B43L9/00; B43L9/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US487364A
Cited
US2428310A
Cited
US844157A
Cited
GB191017716A
Cited
US1825266A
Cited
US2542537A
Cited
US2768443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |