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US2609873A
Expired / Lapsed
US
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Drapery pleating
Assignee: Individual
•
Filing: 1949-01-08
•
Granted: 1952-09-09
•
Expires: 1969-01-08
Abstract
No abstract record available.
Inventors
- 👤 Douglass R Falkenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:23
CPC Classifications
A; A47; A47H; A47H13/00; A47H13/14; A47H13/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US384004A
Cited
US1143100A
Cited
US1860110A
Cited
US2159733A
Cited
US2124650A
Cited
US2302630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |