US3480069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temporary wall construction
Assignee: Midwest Canvas Corp
•
Filing: 1968-05-06
•
Granted: 1969-11-25
•
Expires: 1988-05-06
Abstract
No abstract record available.
Inventors
- 👤 Gary R Handwerker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:08
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/24; E04G21/28; A; A47; A47H; A47H21/00; Y; Y10; Y10S; Y10S52/00; Y10S52/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1203587A
Cited
US1589163A
Cited
US2780571A
Cited
US2848233A
Cited
US2937700A
Cited
US3330330A
Cited
US3321003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |