Patent US3423781A successfully refreshed from Google Patents.
US3423781A
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US
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Securement for mop or broom heads
Assignee: HARRY H HENSON
•
Filing: 1967-10-25
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Granted: 1969-01-28
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Expires: 1987-10-25
Abstract
No abstract record available.
Inventors
- 👤 Harry H Henson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:58
CPC Classifications
B; B25; B25G; B25G3/00; B25G3/02; B25G3/12; B25G3/16; A; A47; A47L; A47L13/00; A47L13/10; A47L13/20; A47L13/24; Y; Y10; Y10S; Y10S16/00; Y10S16/24; Y10S16/40; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45602; Y10T24/45717; Y10T403/00; Y10T403/70; Y10T403/7005; Y10T403/7007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1256288A
Cited
US1505318A
Cited
GB285690A
Cited
US1879553A
Cited
US2444758A
Cited
US2697642A
Cited
US2991494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |