US3391413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1965-03-04
•
Granted: 1968-07-09
•
Expires: 1985-03-04
Abstract
No abstract record available.
Inventors
- 👤 Samuel P Crane
- 👤 Stephen D Kent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:36
CPC Classifications
A; A47; A47C; A47C21/00; A47C21/04; A47C21/042; A47C21/046; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24702
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2503164A
Cited
US2352194A
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US2840500A
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US2821244A
Cited
US2934790A
Cited
US3233885A
Cited
US3231454A
Cited
US3162488A
Cited
US3162487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |