US3440701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strand treatment
Assignee: Techniservice Corp
•
Filing: 1967-03-27
•
Granted: 1969-04-29
•
Expires: 1987-03-27
Abstract
No abstract record available.
Inventors
- 👤 Malcolm F Irwin
- 👤 Carl T Musselman
- 👤 Robert K Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:26
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/20; D02G1/205
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2854701A
Cited
US2968857A
Cited
US3009233A
Cited
US3095343A
Cited
US3099064A
Cited
US3093878A
Cited
US3234626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |