US3430677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll-type closure
Assignee: ERNEST E PIERCE
•
Filing: 1967-12-22
•
Granted: 1969-03-04
•
Expires: 1987-12-22
Abstract
No abstract record available.
Inventors
- 👤 Ernest E Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:55
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/02; E06B9/08; E06B9/11; E06B9/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1583133A
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US2240416A
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US2780283A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |