US3408700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced paper clip
Assignee: Individual
•
Filing: 1967-04-12
•
Granted: 1968-11-05
•
Expires: 1987-04-12
Abstract
No abstract record available.
Inventors
- 👤 Marston S Chase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:46
CPC Classifications
B; B42; B42F; B42F1/00; B42F1/02; B42F1/04; B42F1/08; Y; Y10; Y10T; Y10T24/00; Y10T24/20; Y10T24/202; Y10T24/205
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US575928A
Cited
DE457163C
Cited
US2043553A
Cited
US2055152A
Cited
US2665463A
Cited
GB930491A
Cited
US3052938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |