US3429431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charge of paper clips
Assignee: STEWART A MACONDRAY
•
Filing: 1966-04-07
•
Granted: 1969-02-25
•
Expires: 1986-04-07
Abstract
No abstract record available.
Inventors
- 👤 Stewart A Macondray
- 👤 Alyce C Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:22
CPC Classifications
B; B43; B43M; B43M99/00; B43M99/009; A; A47; A47F; A47F1/00; A47F1/04; A47F1/12; A47F1/125; A47F1/126; Y; Y10; Y10T; Y10T24/00; Y10T24/20; Y10T24/202; Y10T24/205; Y10T24/206; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/49798; Y10T29/4981; Y10T29/49812; Y10T29/53; Y10T29/53478; Y10T29/53487; Y10T29/53504
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US769588A
Cited
US1792235A
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US2156743A
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US2641051A
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US2835027A
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US2970313A
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US3162871A
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US3254398A
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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) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |